I would like to see him swept away, along with the Zeus origin and Diana's years of pointless "fake memories" of the Azzarello Run (if you're going to remove it from continuity, why have it hang around as "fake memory" baggage?), by some chronowave at the end of
The Doomsday Clock.
Diana does not need a long-lost twin brother. (They gave Barry Allen one of those once. As far as I know, he's been wiped from continuity as well. And Barry didn't even spend years having "fake memories" of that storyline once it was invalidated!)
While they're at it, they can get rid of the whole "the Amazons and Themyscira were created to keep Ares imprisoned, and Diana hasn't been able to go back there for the entirety of her superhero career, although she believed she could" thing as well.
Some of the stories about Diana that have been done since the start of
Flashpoint (followed by The New 52, then Rebirth) have been interesting in an Elseworlds kind of way, but I can't think of a single one that I consider a healthy contribution to Wonder Woman as an ongoing character with her own supporting cast and mythos. And I agree with Agent 86 that the whole
Team Zeus stuff has come at the expense of supporting characters that I'm much more interested and invested in, and that seem to get poorly treated or ignored with every reboot/retcon/rebranding.
But that's just me. (And maybe Agent 86.)