Quote Originally Posted by Derio View Post
4.0 does not support ps3 so the whole ps3. Excuse is out the window
As others have said, it's not been officially stated that 4.0 won't come out for the PS3, but even if they don't release the expansion for PS3, that doesn't mean 2.0 and 3.0 would stop working on a PS3. Likely they would keep going still (look at FFXI and how long the PS2 was supported!) which means no changes to the core system of things.

They're not just going to drop a platform as long as a reasonable number of people are still using it, and paying a monthly subscription.