When are the new call of duty 4 modern warfare game modes coming out(PS3)?

May be...

Sometime this month. I wish they'd get another map pack out, although it looks unlikely. The new modes don't interest me a whole lot.

i didn't hear anything about new game modes....guess i should be thanking you for asking, i'll do some research and edit my answer....

New game modes?! Cool! Will they cost?

ive never heard of the new game modes