Toward the end of FFXIII's production, I swear I remember reading that the production staff said it'd be easier to create more stuff in the future since they'd laid down the framework for working with the PS3, which was the reason for the long development time... How mysterious.
... If anything, though, I should like to see a properly funded/executed Xenogears remake more than FFVII.
And it's even less remotely possible to do so...