Japanese magazine Shonen Jump (via Gematsu).has revealed that the disc-based PS3 version of Final Fantasy X HD will also include Final Fantasy X-2. Oddly enough, the article didn't specify whether or not the direct sequel will feature improved graphics as well, so we'll have to wait for official confirmation on that front.
Sadly, however, the PlayStation Vita version won't feature the same bonus, as Square apparently plans to sell the two games separately to the portable-loving crowd. I am amazed at how many times the Vita manages to get snubbed. It's sad, really.
The game is expected to release later this year.