The remix includes two games, Kingdom Hearts Final Mix and Kingdom Hearts Re: Chain of Memories. Those two are both remastered and in HD. Final Mix is basically the first Kingdom Hearts game, with a few tweaks. Chain of Memories is similar to the original game with some added content. Also included are HD cinematic scenes from Kingdom Hearts 358/2 days, but not the game itself.
There is still no news on a release in either North America or Europe.