Today at D23 Expo Japan, Square Enix have announced a HD collection of Kingdom Hearts titles, named Kingdom Hearts HD 2.5 ReMIX. The collection includes, Kingdom Hearts II Final Mix, Kingdom Hearts Birth by Sleep Final Mix and Kingdom Hearts Re:coded. The release date as this stage is simply 2014.

Update 1: Kingdom Hearts HD 2.5 ReMIX is exclusive to the PlayStation 3. (Source: Post on PlayStation Blog) Note that this confirms that the game is coming internationally, and that Kingdom Hearts II Final Mix, Kingdom Hearts Birth by Sleep Final Mix will be full, playable titles, while Kingdom Hearts Re:coded will be a collection of HD remastered cinematics.

Update 2: Debut trailer!

Update 3: Official logos!

Update 4: Official Japanese Kingdom Hearts HD 2.5 ReMIX website launched. Square Enix NA have also updated the official English Kingdom Hearts portal to feature Kingdom Hearts HD 2.5 ReMIX.

Update 5: Unofficial English dubbed trailer! (Using official English voices, from previous games.)

Update 6: Amazon.com is now accepting pre-orders.