'Detergent' haha xP I don't know really, I guess this one could fit :)

I don't like the sound of 'Convergent'.

Sure, it would nicely close the 'Divergent' theme, but for me, after being named as Divergent, for Tris to be now called Convergent would make it seem as if she is surrendering, and won't be Divergent any more... If that makes sense :S

Emergent is better than Convergent because the word 'emergent' means rising above and coming into existance so it would be more appropriate than 'convergent' which means which means meeting somewhere....

assurgent isn't actually a word....so i voted for detergent just because it's funny....and she's already picked a title for the 3rd by the time i'm playing with this....resurgent implies that they've already surged somewhere to begin with, which wasn't exactly the case....emergent would indicate that they leave the chicago area....which i could see happening since the whole plot has been leading up to seeing what is still outside the fence.....

The third book is called Allegiant, but out of these choices I'd pick either Assurgent or Emergent.