I just hope it isn't a remake. The 3 console games and the two handheld games just differ too much from each other that it wouldn't work in my opinion. I think this is also the reason why it sold less each installment.
If they create a new game they might as well start with a re-imagining of the game And just make one or two big games that involves more or less the same story but a bit different path that has been followed with gameplay enhancements, big scope multiplayer, Co op aspect with separate story. The setting was already good.
PS4 will sell 25 million units before 31st of March!
Edit: I didn't state what year! HAHA, so I'm still right in some sense