Update: There's some more info on Tiscali Games, taken from PC Gamer.
Update 2: The first trailer's been released. See here.
Here. All sounding good:
"In many ways Warhead is a different game than Crysis. The easiest way to think of Warhead is that it is Crysis with the action ramped up to 11. This promises to be a much more muscular shooter, with no shortage of huge firefights and explosions. In fact, the original Crysis may come off as being a much more cerebral experience in comparison. That game was about cat-and-mouse in the jungle, whereas Warhead is going to be about blowing that jungle up."
There are some new shots through there as well.