I took this screen shot from the new Chinese trailer and I couldn’t help but notice that one of the Knights of Ren had a very Vader-like feature to his helmet, even more so than Kylo. The I took a look at the guy on the far right and his helmet kind of reminded me of Boba Fett. Am I just imagining it, or does his helmet have a visor shaped roughly the same way and Fett’s helmet in the OT?

EDIT: That thing that I compared to Boba Fett’s antennae thing, is actually on his back. Of course even that makes him look kinda like Fett, resembling his jetpack-rocket thingy.