User blog comment:Superguy79/So if Zatanna joined the team.. Opinions?/@comment-110.141.218.184-20111023110835

Wonder Girl was orignally one of the character off limits to the creators by DC, so she wont in any episodes soon but that ban was lifted a while ago. Arrowette was stated to exist in the universe, but three teenaged archers is a bit much so she probably wont appear unless either Roy or Art dies (or retires) or both.