While I'd enjoy it if Circe and Cheetah interacted, I think they should remain separate. Connecting Cheetah to Circe undermines her power to stand alone as one of Diana's top foes. Perez got it right when he developed Barbara Minerva into the haughty, merciless villain that she is at the best of times. No Circe needed with Barbara Minerva's smart and nerve.

As others have mentioned, there are better characters (Silver Swan, Duke of Decption, etc.) to tie to a myth than Cheetah to Circe.

I miss Circe's Beastiamorphs - they were frightening.