what do you think about ansems and xemnas roles in 3d?

is it about xehanorts return or just part of MoM?

I would say that they're going to be apart of the MoM exam, possibly as Sora and Riku's final bosses for the exam part of the game.

I say you would fight them in traverse town and go to different searching for them and try to defeat them

thats good enough

Sora and Riku defeat them and then, dun dun duuuuun, they become one after being defeated and Xehanort lives again. It'll be a huge slap in the face for Sora and Riku.