Apparently in the distance there thats Adrien Brody, Alice Braga Danny Trejo and others at the Canyon lake Gorge in Texas. Looks like Nimrod Antal and Robert Rodriguez have decided to go for a desert look. Nice contrast to the jungle setting of the Arnie original. Speaking of which, Antal also addressed some of the fans bitching about Brody being the lead star..
"I think when we cast Adrian, there were a lot of people going, 'What?' but at the same time, if we cast a Vin Diesel in that role or if we cast anyone who is Arnold-esque, we would have been attacked for doing that. So we decided early on to go in a very different direction as far as the casting process, but it turned out fantastic. He plays a mercenary in the film and if you look at the guys in Iraq and Afghanistan today, they're not 'yolked-out' Schwarzenegger-looking guys. They're all very wiry and thin guys, and I think it's going to play well."
Now that the ball is rolling, hopefully some more revealing set pics are to follow.