Han is alive, it is all a ruse to get to Snoke. See many of the knights of ren theories. If Maul can survive this than for sure Han can too, especially if everything has been planned together with Kylo. SCNR, someone mentioned crazy fan theories and I can't hold them in. ;-)
I'd dig it just to see Harrison Ford with robot legs. He and Ray Park could get in a sweet dance off in the next installment of Star Wars Kinect too.