GameStop has listed Final Fantasy Box Set 2 (FFX, FFX2, FFXII): Official Game Guides, which is expected to come out later this year on the 17th of November. The listing mentioned that the product will include all hardcover guides of the three games housed via a collectible slipcase with a magnetic clasp. Each of the books has been redesigned and updated with content, including high-res screenshots.
Also included are deluxe ribbon bookmarks, three high quality lithographs that are placed in a Final Fantasy themed envelop in addition to double-sided posters for each game (the ones for Final Fantasy X and Final Fantasy X-2 are based on the HD remastered versions of both games).
Final Fantasy X was first released in 2001 while Final Fantasy X-2 came out in 2003. Both of these games were bundled together in Final Fantasy X|X-2 HD Remaster for the PlayStation 4, PlayStation 3 and PlayStation Vita. Final Fantasy XII launched for the PlayStation 2 in 2006 and has not yet been remastered to another platform.