So 3D comes after Re:Coded, eh? Perhaps the data worlds enter the real world. That would explain the multiple Soras. I'm thinking the Re:coded secret movie is gonna be more like the one in CoM. you know.... where we see roxas for the first time and it leaves us to speculate over the tiniest thing (ie, 2 pics).
The flying Soras I believe is alluding to the people Sora is connected to. Fits seeing as he seems to be reliving their memories.