Be happy.
http://www.videogamer.com/ps3/final_fantasy_x_x2_hd/news/final_fantasy_x_x-2_hd_remaster_is_coming_to_ps4.html
Quote
UPDATE 2, 11/12/2014: Square Enix has confirmed to VideoGamer.com that Final Fantasy X/X-2 HD Remaster will be available on PS4 in spring 2015 for £39.99.
The game will be available as both a digital and packaged product.
The title will also feature "system-exclusive features", but Square has yet to reveal what they may be.
http://www.videogamer.com/ps3/final_fantasy_x_x2_hd/news/final_fantasy_x_x-2_hd_remaster_is_coming_to_ps4.html
Final Fantasy VII will be £12.99 on PS4. No details on whether it supports Cross-Buy.
— David Scammell (@VG_Dave) December 11, 2014