Interesting news today, rumors have been circulating around the community about the next Kingdom Hearts title, supposedly as a follow up to Birth by Sleep's secret ending. The game, originally believed to be titled Kingdom Hearts: Deep Dive, is now referred to by an anonymous forum poster as Kingdom Hearts: Another Dive. A url referring to the game has surfaced, however, the page does not go anywhere. Tomogirl has translated some additional information on the rumored title, below:

This is summary blurb on that particular page... (Possible spoiler? Although, it's not major sounding at this moment.)
Sale date: Unknown
Console: Playstation 3
Price: Undecided
Story: This is about a tale coming from a different viewpoint of what happened a part of (or in addition to) the world in which Sora obtained the Keyblade....

What could this mean? A game about the adventures in the Dark Realm?

Remember, this is all still a rumor. Nothing has been confirmed by Square Enix.

that's insanee! if this turns out to be more than a rumor, I'd def want to play it. sounds like a really dark, mysterious game =D

oh well its a rumor, but it may be true. ;o

well i dont care what they are gonna do but the only thing that i want is to see riku!!!

i really hope this game comes out on the ps3