IGN gives us a brief summary of the trailer shown for Square-Enix's 3DS Debut, Kingdom Hearts 3D.

The very short video gives us a look into the new entry, featuring our protagonist Sora as he appears during the PS2 Kingdom Hearts 1, and with the same graphical quality.

So it was just a trailer so it's hard to tell, but I think this might be a port of the original PS2 game, or at least a reimagining of it. The trailer starts off with Sora and Riku sitting out by the starfruit tree on Destiny Islands. Then Riku disappears in a swirling flash of light. Sora calls after him and runs around the island (the game switches to gameplay here).

Rabla via au.ds.ign.com »