Yes, Xmods are not dead! Through my everyday research I have found these pictures. There are no other details, just these prototype pics.
Bumblebee:
Barricade:
As you can see, they are customizable with "weapons". I'm curious to see what chassis they use.
There is also supposed to be Jazz-a silver Pontiac Solstice, Ironhide-a black GMC Topkick pickup truck, and Ratchet-a lime green Hummer H2 ambulance. But alas, no pictures of them yet.