I think it would be nice to be able to save your quickbars and skill tree when you have to respec a lot.
By this I mean for example with my jugg:
when I tank, I have my threat generating abilties, taunts etc. on a specific spot in my quickbars. When I respec, I get some other abilities and I have different rotations so I put my abilities in other spots. It would be nice to have an option to save the way I have my abilities in the quickbars, since I respec quite often and it takes quite some time to put them back on the right spot.
Also, being able to save the skill tree before respecing would be nice.
This would make respecing much easier.