Thaumaturge
Wandering. Not lost. (He/they)
If you are the kind of person who doesn't care, then you probably wouldn't care if it was called anything else. If you're new to the game, and you've never heard of it, then you wouldn't care if it was called anything else. If you are a huge fan of all things Greyhawk, then you'll probably be incredibly irritated. It seems like WotC can only stand to lose more than they gain with these types of choices.
If you're the kind of person who cares deeply about Greyhawk, how difficult will it be to port the adventure over?
Thaumaturge?