It's possible but right now we have so little info so I can't say for sure.Ok I think this might have been said before but what if Ventus was a BWHOPL(Being With Heart Of Pure Light).
So then what happened to the soul?What if when Ven was erased it was only his body that was erased and his heart migrated to Sora.
And why go to Sora?
And if this were true Sora would have 3 hearts inside of him at once which would be a little odd. Also then Ven's heart should have effected Sora similar to Kairi's.
So what happens to said heart when Roxas returns to Sora?Ven's heart then went with sora's body and soul making it look like Ven.
Who says he does have emotionsThis would also explain why roxas has emotions because he has Vens heart.
Within reason. There are somethings that are impossible in the KH universeI think it sounds possible, anything can happen in KH.