J.J. Abrams revealed a few months back that Kylo Ren was a member of the Knight of Ren. Take the name with a pinch of salt, but that does look like what we've seeing here, with the villain flanked by a collection of similarly dressed henchmen. Interestingly, these "Knights" are actually wielding blasters, so may not actually be Force adept. Also check out a nice look at Ren's lightsaber blade, flickering in all its unrefined glory.