Pressure from fans is different than signing a petition. Square-Enix knows that fans want and would buy a remake of FFVII, and it is imminent. They are just waiting for the proper time/console. It may not even be released until the next next-gen console-who knows. There are still two Final Fantasies that are yet to be released on current-gen that are ahead of FFVII in line (FFV & FFVI).
