The Sovereign

This WOB seems quite relevant:

He is bonded to an Enlighted Mistspren. That is some significant Connection. With that said, I agree Renarin as Odium seems unlikely.

It is possible if someone were to take up both Honor and Odium the Storms would change into 1 new Storm. Or a new 3rd Storm could manifest. Alternately, there could be a Cultivation storm a brewing.

As far as we know when BAM was trapped it stripped away the Identity of all the Singers she was Connected to. While that seems to have been an unintended consequence, the same principle could be used to unkey Stormlight/Voidlight/Lifelight en mass. While the Rosharans are figuring out how to make Unkeyed Stormlight, the process seems very slow and limited to small quantities. The Ghostbloods are looking for a way to do it in large scale. On another note I had a random thought regarding the Physical Body Spren experiments Ishar is conducting; I suspect he is using the same principle that creates the Herald's bodies during each return to create the Spren bodies.

I suspect it is related to her ability to Connect to a large number of people and affect Identity as we have seen with the Singers.

To add to this, The Natans, Horneaters, and Herdazians are also descended from Ashen born humans; Interbred with Singers in the cases of Horneaters and Herdazians and interbred with Siah Aimians in the case of the Natans. The Iriali migrated from another planet on their Long Trail. @Isilel I suspect that the Thaylens are also an interbreeding with Siah Aimians but this is purely speculation. Edit: Brandon RAFO'd this back in 2015:

This seems extremely unlikely to me. Keep in mind Trellium is the metal of Autonomy. By it's nature it shouldn't attract anything. It should try to remain Autonomous. @alder24 I agree with you regarding the Spren. I think we can even cut Cryptics off the list as this is very likely an Elsecalling. That leaves us with Inkspren and Lightspren. Of the two, I still think Inkspren is the far more likely for the reasons you stated. I should acknowledge that it is certainly possible, they have different Spren.

Whoops, I didn't mean to double post, but here are the relevant WOBs.

Uli-Da (Ambition)

Yeah, it seems very likely it will be in the Hoid Letter Epigraph of WaT.

I could not find the Ancient Truthwatcher WoB either but here are a few of relevant WoBs:

I see what you are saying, but it wouldn't be a secret pregnancy... They are a young married sexually active couple on a planet without birth control. Also it should be noted that Adolin is a Highprince, he has a duty to have an heir. So to double down, it wouldn't be a secret pregnancy, it would be an expected one. I do agree though that the Adolin dying and leaving a widowed pregnant Shallan trope would be lackluster. Which is part of why I don't think that is what is going to happen. I would guess Shallan is pregnant and both will survive SL5.

I was saying that in Lost Metal Brandon heavily foreshadowed a death and then followed through, so I wouldn't be surprised if he played on our expectations here and foreshadowed it to then surprised people by going in a different direction.

@bmcclure7 @Ninth of the Night Sorry, I'm struggling with my English a bit today... I thought you were asking "Who are you referring to in regards to "While I tend to agree with you on this..." I was referring to:

@LewsTherinTelescope, the person I quoted.

While I tend to agree with you on this, we recently had some pretty heavy handed hints regarding someone's fate in The Lost Metal. I think Brandon may be playing on our expectations here and laying some false breadcrumbs, or at least breadcrumbs that lead down the wrong path without more context.

Yeah, I hadn't made the connection here that we've already seen Sja-Anat is Enlightening the Inkspren of the Oath Gates. I guess on my second point regarding Transportation, this would tip the scale more towards the Inkspren.

We don't what? But yes, she certainly could have Enlightened/Corrupted other Radiant Spren. We know both from the books and WOBs that the Mistspren are at least willing to listen to what Sja-Anat is offering. On the other hand, Regarding their implied ability to help Iyatil and Mraize navigate the Spiritual Realm, that could be tied in with the Transportation Surge which means Inkspren or Lightspren, in this case I would lean towards Lightspren as the Inkspren as a whole seem unwilling to bond currently, Ivory excluded. As @Ashbringer pointed out, we have already seen Sja-Anat is Enlightening the Inkspren of the Oathgates, so there is precedence there. We do know from Kelsier's comments in The Lost Metal that Iyatil is causing some havoc on Roshar as of post Stormlight 5, Pre-Stormlight 6.

Based on Sja-Anat's indication that her children will be able to help them navigate the Spiritual Realm and Tumi and Glys's willingness to be Enlightened I would guess they are Enlightened/Corrupted Mistspren; So, Truthwatchers. It should also be noted that the 2nd Ideal of the Truthwatchers is related to Seeking Truth: I.E. A Hunt.

I don't know that she would need to be Cosmere aware to make a comment like this. Keep in mind that Cosmere in world is also used like galaxy/universe. I suspect its more like her saying "One of the great mysteries in all of existence."

I just added a question I thought of during my Stormlight reread.

Definitely Lopen's gift for Syl [Wool] Hat Spren.

We also see it interact with Rosharan Investiture with the Aluminum room in Kohlinar, the Shardblade "sheaths", the box Nergaoul's gemstone is placed it, etc. etc. As @Ashbringer points out, it interacts with it but doesn't necessarily negate it.