So when will Clay Fighter 4: Claymageddon going to be released?

CF4 is scheduled to release summer of 2010. Hopefully we'll know more as the release date approaches.

As for the subtitle Claymageddon... You're most likely referring to the obscure ClayFighter Kart racer that was released back on the SNES just before the N64 came out. Only a handful of people know about it, but someone posted a clip of it up on youtube. Check it out!

http://www.youtube.com/watch?v=Yu_moia-oVI I'm bad, I'm cool, I'm no one's fool.

There is not much to thrust into the spotlight the good play of Clay fighter: D