I wouldn't hold your breath waiting. There was a cancelled PS2 CoC game, and something called Destiny's End which was a third person game set in modern day, but that's not been heard from in years.
I'm not even sure Headfirst even exists anymore.
It's Destiny's End that I'm talking about. Sounds like a sequal from their website. No new news posts since October 27th of 2005.
So, yeah... doesn't seem like they exist anymore.