I don't have an actual rendering to post (all the ones here were all I've seen online), but I do have some info collected the last day or so from sources who saw both the SUV and SUT:
1.) Everyone who saw the trucks said they were unmistakably Hummers. Not specific info here, but VERY reassuring. They look much more like the H2 and H3 than the original, obviously - most say they most closely resemble the H3.
2.) The most notable thing about the design was the huge, squared-off fender flares. Those flares are filled with standard 35 inch tires (allegedly), with 37's optional on the 1,000 hp variants.
3.) Suspension is fully independent, with available air ride on higher trims.
4.) Stylistically, both the SUV and SUT are identical from the back of the rear doors forward. The truck rides on a longer wheelbase to accommodate the 5 foot bed.
5.) Interestingly, both feature sloping design elements towards the back end. The SUT has "sails" from the roof down to the bed (think Chevy Avalanche), while the SUV has a sharp angle downwards from the roof to the taillights.
6.) Both feature targa top removable roofs, which come off in four pieces and are easily stored in the frunk. For both variants, the targa open-air function covers both the front and rear passengers fully.
7.) Several people said the SUT had GMC's terrific MultiPro tailgate.
8.) There are massive tow hooks on both ends of both variants.