Relying on games to save a console has only left PS3 enthusiest with numerous dissapointments, at this point the PS3 needs a market appeal change to save its sales, not a single game or cluster of them.
On topic I have no clue what these games could be but since Square-Enix said it would take 4-5 years to do a FF7 remake for the PS3 it's doubtful they'd be announcing that unless they began development before the PS3's stats were available.