Strife

Don't forget Ym, he shares at least one Surge with Renarin, and I pretty sure the other order with Regrowth has a female Herald too. EDIT: Ninja'd

General cosmere spoiler (Not sure if worthy of a spoiler tag but anyways)

This reminds me of a certain passage in the sample chapters of the draft to The Liar of Partinel

Personally I don't think the word Destroy on the back cover has to mean that one of these four will become one of Odium's champion, there are plenty of ways to destroy. WoT Spoiler

Don't poke the sleeping bear. I hear that every time he is taunted, he kills off a Stark. *Not at all off-topic*

If I'm not mistaken, Shallan is an aspiring Lightweaver. This would mean her body focus is the blood, and I have no idea how this relates to her taking in stormlight, Kaladins body focus for example seems very clear. I don't know what Cayden meant but I understood it as she would use her imprinting ability to take in stormlight, and that she doesn't have to draw the actual imprint for it to work. Just my thoughts though, although the image of her stopping to draw in the midst of battle is rather hilarious

I also agree with your conclusion, from the information at hand that seems to be the most likely event. If I may present a counterargument to your counterargument: *Crazy theory rambling starts* It's likely that the individual spren bonded to the Radiants knew (because of the bond they shared) and were in agreement about what had to be done, i.e. the Recreance, but isn't it possible that the spren that reside in the cognitive realm didn't know and were therefore pretty upset what with all the mass betrayal and such? While I can't really present any concrete facts to support this, from what we've seen so far neither Wyndle nor Syl seems to have any contact with the Cognitive realm. Edit: But why wouldn't the Radiants check with the Cognitive realm first, surely they must've been able to, or maybe they didn't think to check it first because they weren't aware of the repercussions for the spren.

That's true, but everything in tWoK hints that void = bad. This doesn't have to be true, Sanderson as we all know likes to throw curveballs and surprise reader with what they think they know. A question at OP (sorry but your name is too hard to spell ) though, is it confirmed that Nightwatcher = Cultivation? From reading the Lift interlude, it certainly hints at it, but do we know for sure?

Here's a good picture of it: http://www.17thshard.com/forum/topic/2559-surges-and-voids/ I also really dig this theory based upon nothing other than gut feeling and that the "void" chart has a cultivation feel to it.

Thinking about the transformation magic system, is it possible that it has something to do with the Parshendi's ability to change forms?