I think you should pay for it. I don’t agree with Seasonal Servers just dumping their characters on stagnated servers.
I agree!
EDIT:
I don’t see NEW Servers being a thing in Classic, anyway. Because of what they said (regarding Names) in the Q & A.
I have a separate thread, for that:
https://us.forums.blizzard.com/en/wow/t/overlooked-possibility-keyword-that-nobody-generalization-is-really-talking-about/884567