No, not Tekken 6, but that's inevitable. T5 DR will be receiving an upgrade that enables online play, and addssome new modes, including practice; 2800Y for the full game at 1.4GB, or 1000Y for the upgrade to those who already have the game.
Nifty, no?
The latter news is self explanatory, with a 2008 release on both consoles. I suppose with Tekken going online, it's not too farfetched to assume that SC will follow suit as well.