Honestly, I don't feel that 3DS changed much of anything. Sure, it introduced (SPOILER)time travel, which is guaranteed to screw with just about any continuity on some level, but ultimately, it didn't really change anything significant. Nothing was turned on its head in a way that changes expectations for KH3. (SPOILER)Master Xehanort is back and is still attempting to do the exact same thing he's been doing all this time. The only rub is that everything, so far, has gone according to keikaku, and we've been playing to Xehanort's ultimate plan to obtain Kingdom Hearts. The thing is, from here on out, he doesn't have the benefit of fore-knowledge via time travel to guide him through anything.