Square Enix North America (announcement) and Square Enix Europe (announcement) have both confirmed that Kingdom Hearts HD 1.5 ReMIX will be receiving releases in North America, Europe, and PAL territories. The release date for all regions is currently set for Fall/Autumn 2013 (either September, October or November).
The RRP for the title in Europe will be 39.99 Euro, and the European/PAL releases are said to be "localised in English, French, German, Italian and Spanish". The exact details for this are explained below:
The following screenshots and artwork were released along with the announcement. Currently, these are some of the best quality screenshots, and the highest resolution of the logo and key artwork that we have seen so far. Square Enix Europe also promised "a lovely gameplay trailer for you to drool over soon", and "more news for you in the coming months". Look forward to it!
Square Enix North America have also transformed the official Kingdom Hearts portal website into a website for Kingdom Hearts HD 1.5 ReMIX. Make sure you check it out!
Update: Robert Peeler, Community Manager for Square Enix, answered some questions about HD 1.5 ReMIX on the North American PlayStation Blog. While there was no new details revealed, he did state the following:
He also said that more details will be available in the future.