I think Shallan will draw Kaladin on impulse for her "collection" or maybe if she sees him talking to himself (Syl). Depending on the situation, she'll most likely will capture Syl as well. What I'm curious about is when/if she captures Kal using storm light while fighting ans Syl is getting off on all the action around him. Wonder what would she think than or would she just have one of her panic attacks.
PS: Rock will end up as a cook for he king (go Elvis) and will seek glyph heads around him