While it's possible, and could certainly thrive on PS4, I just don't see it as the kind of game that Sony is interested in at the moment, particularly when SF has fallen back into the sphere of the hardcore-only sect again.
Even if it did happen, it wouldn't even really be a Megaton for this reason, unless it had something very striking about it.
Tekken going one platform only though? That'd rock a few boats.
Pretty sure SF would be a bigger get than Tekken.