From their preview:
WIPS of the 2nd-Generation Warthog.
Note the suspension system which allows you to raise the vehicle higher off the ground, these two are in “low” and “Medium” ride-height, you can really “stilt” the vehicle if you want to.
This version houses the standard TIP cannon which is controlled form inside the vehicle and can be lowered/raised over terrain, later versions have an alternative hatch with 3-barrel rail-gun (and gunner), and a couple of auto-turret options. These will be Interchangeable with the TIP cannon, so if you don’t glue it in place (use am magnet) you will be able to swap-out the different systems at will.
Price TBD, out at SALUTE 2012.