Should Marvel bring back the Ten Rings?

Remember the terrorists from Iron Man who we never saw again? Well, I think Marvel should bring them back. Of course the MCU already has a group of recurring criminals with HYDRA. But after AoU, with HYDRA on its last legs, wouldn't it be a good time to reintroduce these bad guys who got swept under the carpet? They could have them in CW (unlikely because of HYDRA already being in the movie), Black Panther or the new Spider-Man. And since we now know there's a "real" Mandarin after all leading the organisation, it could be a perfect time for them to make a comeback.