I would really like to see some sort of ability to save our hotbar settings (ie. which we have shown, where they are, what is on them, etc.) to a profile or something so that if we wanted to do PvP or something, we could create another profile and have bars for whatever activity it was.
For instance, I do mostly all PvE and all of my hotbars are set and pretty full for this type of play, however, I do like to PvP sometimes, but since I have to use the same bars as I have for PvE, I am either forced to remove some of my skills to add PvP skills or not use any PvP skills and stick to what I come in with.
I think this would be something that would help and be a nice quality of life change b/c as far as I know, this is not something that can be done currently.