The Sovereign

This actually makes a lot of sense, I think I have been convinced.

This is a good point, another to add to the case for the Willshapers is that the essence associated with their order Foil with the Soulcasting property of Metal which obviously fits with Bronze cast of their bodies.

During Adolin, Azure, Kaladin, and Shallan's little adventure in Shademar we are introduced to the Lightspren (Reachers). Once they arrive in Celebrant Captain Ico takes Adolin below deck to the hold of the ship to recover Maya. While there, we find out that Captain Ico's father is a deadeye. That brings up the question; which order are they the Spren of? I think we can make a reasonably educated guess that the Lightspren are the Spren of the Stonewards Willshapers. We can eliminate the Windrunners, Skybreakers, Dustbringers, Edgedancers, Lightweavers, Bondsmiths, and Elsecallers as we know what type of Spren their orders are affiliated with. This leaves us with the Truthwatchers, Stonewards, and Willshapers. We have seen the physical manifestations of the Willshaper and Truthwatcher Spren (via Timbre and Ym's Spren [Renarin's is corrupted so should be ignored for this purpose]). Typically, a Spren manifests in the Physical realm as an incomplete version of their Cognitive aspects. The descriptions of these Spren are nothing like the Reachers. We also have some contextual clues from a WoB that the Lightspren are not the Truthwatcher Spren. Brandon typically does not lie and has said that he hasn't decided what the Truthwatcher Spren will be called and doesn't want to canonize it. This would eliminate them from being the Spren of the Truthwatchers. Relevant WoB: Also contextual clues in story make me think that Timbre is a Starspren (in addition to the description of Timbre and the comments by Venli, travelling/exploring using the stars as a guide is a very Willshaper-y thing to do). We have several contextual clues that indicate that the Reachers are the Willshapers' Spren: -As @Blacksmithki pointed out, the Reachers are the guides of Shademar and often travel around the Cognitive realm. -As I mentioned a couple of posts down, The Willshapers essence of Foil with the Soulcasting property of Metal seems to fit well with the Bronze-ness of the Lightspren. -The fact that they are only bonding Listeners as of now works well with their distrust of Humans. -As @Ookla the Obtuse & @HoidsRock addressed below the Conversation between Venli and Timbre about Timbre's grandfather and Ico mentioning his daughter pretty clearly identify the Lightspren as those of the Willshapers. -@Yata Also pointed out the way the Lightspren seem to communicate on the ship seeming similar to Timbre communicating with Venli via the Rhythms. This leaves us with the Stonewards; There are two large clues that indicate to me that this is their order; first, We know via Dalinar's visions that the Stonewards' Plates and Blades glow an Amber color. The Reachers are described as looking like they are made out of Bronze. Second, Captain Ico says that his kind no longer trust humans, we have yet to see any new Stonewards, is this because the Lightspren are the only holdouts that have not restored their bonds with men? From a storytelling standpoint this would be a good contrast as Taln was the last to break his Oath. TLDR: Lightspren = Spren of the Stonewards Willshapers

It would have been sooooooo good! Right in the feels.

The character (Oberlyn Martell) is not like Kaladin at all, but Pedro Pascal is an excellent actor so I'd guess he could pull off Kaladin. Pedro Pascal is just who I always pictured in my head when I thought of Kaladin. Ironically, I read WoK before he was introduced on GoT. This just reinforced it for me.

Kaladin is most certainly Pedro Pascal with long hair...

I was just going through the WoBs on Arcanum from the Oathbringer signings and I stumbled upon this gem... So, we have confirmation that the humans who migrated to Roshar (The true Voidbringers) are indeed the people of Ashyn. I hadn't seen anyone discussing this other than a few brief speculations so I figured it was worthy of drawing attention to.

I suspect the Third Bondsmith Spren is actually "The Sibling" not Cusicesh. My guess is that the Sibling is in fact the Spren of Urithiru. This recent WoB is tantalizing:

Some of these have probably been addressed but I wanted to compile my own list of questions somewhere (as I often think of specific questions and then later can't remember what I wanted to further research...). I'll likely update this list as things are answered and/or more questions arise...

To add to this we see Adolin living the 2nd and 3rd ideals of the Edgedancers with Maya herself: I will remember those who have been forgotten. I will listen to those who have been ignored. We initially see Adolin talking to his sword and explaining how it would feel wrong for him to give it a name as it probably already has one. Then in Kholinar we see him again talking to Maya saying that he knows that she is a dead Spren but he is thanking her for her help and apologizing. Later in Shademar we see him showing kindness and appreciation for Maya when we see other Spren showing callousness toward the "Deadeye" (for example when he doesn't want her locked under the ship's deck). Finally we see him listening to her in Thaylen City (when she tells him her name) even though we saw in Shademar that Deadeyes are typically an avoided topic.

Deadeye

Taravangian doesn't make sense in context. He wasn't motivated by ambition. Taravangian's moments of anguish over what he has done are likely genuine. His motivation is what he says it is, preservation of the humans on Roshar. He is a traitor, but he wouldn't view himself as one. He simply thinks he is doing the only thing that will allow him to reach his goal of saving the people he can. He also isn't seeking freedom. He actively accepted servitude under Odium to save Kharbranth.

Vasher gives Susebron the command phrase "My sin be hidden". Susebron controlls the Phantoms. As for the hair color thing, I suspect it is a Yolish trait but not necessarily something that "breeds true" like the Alethi black hair, just a possibiltiy. On the topic of Yolish people that do not have white hair Cultivation and Leras (Preservation) do not either.

No, he didn't. Vasher simply stops suppressing his Divine Breath and reverts to his Returned body. His hair doesn't change colors. Also Susebron had jet black hair while holding all of the Breaths. I highly doubt White hair has to do with Investiture amount. More likely White hair is a trait of Yolish Humans. I believe that you are thinking of Denth's hair shifting through several colors as he dies and ending on White. This I suspect is actually just because he is a very old man and in his death fits he could no longer maintain the control over his Royal Locks.

Well, he does have the Moon Scepter. I suspect it, along with Connection and Identity manipulation could allow you to use Selish magic outside of the region if you knew what you were doing.

I see your point and I suppose we do not know. I would argue that context is the best clue for the Traitor to be Venli. Nevermind in-story context (which @Leuthie aptly addresses in the post below mine), the dust jacket blurbs themselves give decent context. The form of the Sleepless' writing is very linear and paints a clear path towards each Radiant. I find it unlikely that they have one random misdirection along with several relatively clear descriptions. This seems especially true when you consider that the writing is likely intended to be ready by other Sleepless. I think this is a case where the obvious choice is the correct one. Also, I disagree with your assessment that Moash is a good candidate. I'd argue that he is not broken by ambition, but by vengeance. We never really see Moash being particularly ambitious. Even his desire for a Shardblade was really just a means to an end for his vengeance rather than a desire to advance. If anything I'd argue that Moash doesn't feel like he deserves to do/be better. Also his actions would eliminate him from potential Radiance as accepting your brokenness is part of it and Moash does the opposite and instead forfeits his pain/guilt/responsibility to Odium. I think you could make a very good argument for Moash to be Odium's Champion on the other hand... but that is a thought line for another topic.

Bridge Four already has a "Truthwatcher". I suspect you meant the original Bridge Crew, but semantics...

Warbreaker: Lightsong is speaking to Siri about Llarimar.

A few of my favorites: "I can't even get him to acknowledge the theological paradox it causes when I try to tempt him to do evil." "Never move without asking yourself, is this too easy?" "What is it we value? Innovation. Originality. Novelty. But most importantly...timeliness. I fear you may be too late, my confused, unfortunate, friend." "Thievery was the most authentic form of flattery. What could be more satisfying than knowing the things you possessed were intriguing, captivating, or valuable enough to provoke another man to risk everything to obtain them? This was Kelsier’s purpose in life, to remind people of the value of the things they loved. By taking them away."

Well, you can read Siri and Hoid's interaction. Hoid is the storyteller in the court of gods who tells Siri and Lightsong about the origins of the God Kings.

We know via WOB that the events of Warbreaker are ~700 Cosmere standard years before WoK.

You beat me to it. "The pipe" was also an acceptable answer .

Yes, they have met. When Kaladin asks Vasher about Hoid in WOR, Vasher scoffs and makes some negative comment about "Dust" (It is implied he doesn't have a high opinion of him). Dust is one of Hoid's aliases.

I'd have to agree with you @Matt Snow, Moash is definitely given Jezrian's Honorblade.