Strife

All current Radiants are the same gender as the order's herald and even look like them. Jezrien/Kaladin - male, strong features; Shallash/Shallan - female, young; Jashnah/Battar - female, long hair in a bun; Lift/Vedeledev - female, looks like somebody who's hungry

 

ON THE OTHER HAND:

 

2) Renarin: Palah being on the chapter icon is pretty clear indication that Truthwatchers are #5 (he would be the first radiant we see of different gender than their herald). 

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 

What makes you think that? The Recipient is almost certainly a Shard (we may even have direct WoB on this, actually...), and Mraize certainly isn't following any non-intervention policy on Roshar.

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

"The stronger the truth, the better hidden it is, the stronger or bond." You might be on to something Fishy my boy 

 

Perhaps the Cryptics are attracted to liars, but seek the truth itself. VERY odd considering lieing is the last Honorable (IMO) action a person can take. 

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

 

"The world can change. Surgebinding and Shardwielding can return; the magics of ancient days can become ours again. These four people are key.

One of them may redeem us.

And one of them will destroy us."

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

Well, in G. R. R. Martin's case, a 10% rate would still be miraculous.

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.
 

It would be cool, but incredibly impractical if she had to draw the spheres to get the Stormlight. Just imagine a full Lightweaving KR running around the battlefield in full Shardplate armour and using a pen and paper to draw while fighting giant Voidbringers. 
 

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.

My problem is that I have no idea what voidbinding is. It could mean anything. That chart could be a voidbinding chart, and behave in that overlap way. Maybe voidbinding is just surgebinding via Cultivation's method. Maybe it is different terminology for soulcasting? Hard to guess.

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.

I also recall several early quotes from Brandon talking about how the world of the SA had, among others, a "fundamental forces" magic system and a "transformation" magic system. Up to now we have assumed that Soulcasting is either fabrial based or surgebinding based. I wouldn't describe either of these as a "transformation based" magic system.

 

I see a few possibilities for what is going on:

 

1) There is an as-of-yet unrevealed magic system that is "transformation" based. I suppose it is possible that either Jasnah or Shallan is actually using this system, and not surgebinding. Maybe the cryptics are involved in this system in some way? They certainly don't act like any other spren we have seen. Maybe this is the unknown system that is eluded to in the Ars Arcanum?

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