I'd be happy with Klingons if they do a different story! Don't retread the same ground that we've seen before in previous movies or TV shows. There's plenty of things they can do with Klingons that would be really different and exciting, but I worry that if they do them, it's going to wind up as a montage of previous Klingon stories.

Part of the thing of the sacrifice originally was tied to the Kobayashi Maru - Kirk cheated and never really faced the no-win situation until the point where he couldn't save Spock. (Not that he hadn't lost people before, but he'd always gotten out of situations one way or another and this time he couldn't.) In this version, he accepts that it's no-win for him but not his ship, not his friends. I suspect original Kirk would have preferred to have been the one to die rather than lose Spock. This one was in the position to make that choice.