First off, I am pumped for KH3D!!! It's looks sweet!

Second anyone have an explaination for Sora and Riku being younger again??? Yes, I know it's for their exam. Did Yen Sid set them up in a dream to be tested that way orrrrrr what? I was wondering when Disney would apply some "dream" stuff in there, cuz you know Disney, they're big on dreamin'. Soooo is KH3D all just a dream? What do you think?

That's what I believe. It would make sense because of the title. Also, it would explain why they look lik their 14 (Sora) and 15 (Riku) selves, as well as the appearance of Ansem SoD and Xemnas.

So many paradoxical events; new worlds, worlds that shouldn't exist now, people who should not exist, kh1 attire, falling Soras. My best guess is that it is a sort of dream world, disposable parallel universe, whatever, and like all worlds the heartless have been breaking the walls. This causes chaos and a form of Xehanort on the outside is manipulating it or some how working inside of it to some degree. This is most likely wrong but it doesn't feel incredibly stupid.

I actually think that Yen Sid is using his magic to create this dream world that Sora and Riku are in to test them for the Mark.

Haha like Inception! haha jk. Sounds resonable. I wonder why Yen Sid didn't just test them in real life. Anyone have a theory for that?