I've noticed that the community is coming together in a sense, and they have spoken, The warlock arm bands are simply lack luster, and seem like they were and after thought while the other 2 classes' received flashy pieces of class armor that makes them stand out that much more. I'm aware that there are legendary bonds around level 20 that have holograms on them, but even those seem somewhat boring next to the other class gear that I've seen at legendary levels. Most of the arm bands that were in the better had little to no variation and many people have spoke out and even switched classes for this reason. I've left a poll that includes some ideas that have been thrown around for a possible change. Personally I feel that extending the arm band to a full sleeve would be a nice fix, others think that we should get a shoulder piece or a hood, and even others have brought up the idea of being able to change the color of your abilities like your grenade, melee, and nova bomb.
EDIT: Here's a link to a petition that Deej has already commented on, he's the community manager.
EDIT: We got Deej in the thread now too guys, keep up the discussion and voting