My bet is a Fox suspension, given BRP's relationship with Fox (i.e. Rene's, XT-P and Limited). I think the logic will be comparable to the Commander X in concept, but in a much lighter machine and hopefully a special shock made especially for the Maverick with longer travel. I also expect the geometry to be very different than the commander, in terms of angles etc and by the picture it has an almost dune buggy look, not unlike the RZR and Wildcat. All the better for jumping! lol
It seems like the best of both worlds: Clearance of an A-Arm setup, but better handling of trailing arms.
A lot of us around have talked around the campfire that for our kind of riding (Tennessee / Kentucky) trail riding / rock crawling a great platform would be a S with a XP motor. It seems that is what the Maverick is and then some by taking a better suspension than a S and more power than a XP.