I mean, i like BBS and 3D, but i don't like they're lack of sidequests and NPC's compared to KH1 and KH2, im hoping KH3 is not like this in taht respect and is more like KH1 and KH2 instead.

I would imagine (hope) that the power of the new consoles enables them to create KH worlds like none before; more NPCs, side quests, and general interaction with the worlds would be phenomenal. I don't mean interaction as in traversal so much as making the environments come to life. The worlds of BBS were nice to look at, but felt at times like empty dioramas. 

They're going to focus on the style that was captured in Kingdom Hearts and Kingdom Hearts II, but they're also going to add in the best that Birth by Sleep and Dream Drop Distance had to offer. I imagine though that most of what they put into III will be vastly different from what we've seen in any of the Kingdom Hearts games so far, and will help set a new standard for the series like every game before it.

Hope not. I want the same style, just with new additions, such as the Drive Forms in KHII. 

The osaka team made bbs and DDD but to answer your question yes i do think it will be a little different but not too much

Is that seriously a thirty word long thread title.