Batman does not appear in Elseworlds.Arrowconsulting producer Marc Guggenheimconfirmed that earlier this month.
But that doesnt mean he isnt referenced.
Secondly, if theres a Batwoman, where is Batman?

Credit: Jack Rowand/The CW
Our approach is: What does Gotham look like after the Batman has been gone for three years?
says Caroline Dries, who consulted on the crossover and will executive produce the potential Batwoman series.
So its not a happy place.

Jack Rowand/The CW
Our guys walk into a grimy, scary Gotham.
Its a dead city, says Guggenheim.
Its the worst case scenario.
The reason no one talks about Gotham is the city might as well be dead.
Its practically a ghost town.
Outside of Gotham, there is a question of whether or not Batman is even real.
In fact, Barry, Oliver, and Kara will argue about this in Elseworlds.
Oliver is like, Hes not real!
Theyve made him up!
Its a hoax just to scare the citizens.
Barry is flabbergasted by that and all he wants to do in Gotham is meet Batman.
Its a pretty funny scene, says Gustin.
Adds Amell, Oliver is not enthused about the idea that there might be some other vigilante out there.