In the interview by Famitsu, Kitase announced that Final Fantasy X HD is 70% completed and FFX-2 50%. The remastered version was announced back in 2011 at Tokyo Game Show and the journey hasn’t been the most easiest one. Kitase mentioned that the team had difficulty taking the assets from the original game for this remaster.Only one programmer was responsible for converting most of the data but they called an outsourced team to help on the project. Somethings couldn’t be transferred from the original and they needed to be created from scratch. The Visual Works was also asked to re-create cinematics to fit widescreen resolution.The character models, enemies textures and environments have been redone and these HD elements has made the size of each game too big for a single Vita card – That’s why FFXHD and FFX-2HD will be sold separately on Vita.Kitase also hopes that the younger and new fans will be enjoying FFX as much the older fans 10 years ago. Final Fantasy X/-2 HD Remasters will be out this year worldwide.
They are only selling it separately to make more money.