Well, and there was that '86 Legend of Wonder Woman mini, where all the Earth-2 amazons got turned into constellations, which made no comment about Diana's location at all except to have her... not there (on Earth or Olympus).
Fading into the aether, though, is probably a better fate than turning into a whiny, psychotic reality-punching supervillian.
I don't imagine she'd be on Earth-2, though, since the one who got ascended with Steve was the Earth-1 version. Earth-2!Wondy is doubtless around somewhere, but of course, it wouldn't be the same as the old version anyway, this being a new Earth-2...