#2 Cesaro
Cesaro once had an incredible run down in NXT, where his matches with Sami Zayn have become the stuff of legend, and as he isn't being utilised properly on RAW, another trip down there would be incredible.
The brand has grown so much since the days he was there, and competing on a Takeover would be a thrill that he hasn't experienced in quite some time, so this works out perfectly for both parties involved.
By this time, The Swiss Superman should have been a multiple time World Champion in WWE, but Vince McMahon may seemingly still see Cesaro as lacking 'it factor', so perhaps a run in NXT will change his mind.
It's unlikely to happen that way, and we may see him out the door of WWE in the very near future, but if he does indeed stay under that umbrella, we'd prefer to see The Swiss Cyborg in a place that gives him a little more time and freedom, and that's NXT.