I'm almost positive Tekken's due out this year.

EDIT-

Oh, wait, I didn't catch on to that right away. Yeah, you're right, most of them will probably be in 2008. However, one possible effect of that would be that 360 and Wii gain even more support through the rest of this year and begin to overwhelm PS3 by next year. Because they too will probably have some big name titles coming out in 08.

All I can is that what PS3 has coming out for the rest of 07 (Lair, Tekken 6, Heavenly Sword etc.) better be amazing and be able to draw in a lot of console sales, because otherwise it's competitors will simply eat up the market.