Would a FFVII remake overshadow FFXIII exclusivity loss?

[MANUELF]

Why all think FFVII HD will be the ultimate game? A remake almost never sold as much as the original, a example is the Pokemon Red/Blue/Green on GBA, it sold 2/3 less than the originals and Pokemon Red/Blue/green was a game at least 3 times more important than FFVII.