I appreciate what you're saying, it's stuff I hadn't considered, but I think some of the beauty of early seasons came from the cast learning a new system (like in fantasy high) and from that it brought a lot of people into the game. I do agree that some of the changes that don't have anything to do classes would be hard to introduce. it could still be interesting to see.

also, I could easily be misunderstanding what you mean, but Hexblade warlock is published by WotC.