I don't know if it's due to the blur but that looks like Michael Keaton Batman from here.
I've seen speculation it's a flashback to when Barbara first saw him in action as a child.
I wonder if we'll get actual confirmation of Robin...
Keaton's Bat-Suit for BATGIRL sort of remains me of a Dick Sprang barrel chested drawn BATMAN from the 1950's.
SprangBatmanStatue.jpg
Gordon has red hair and Keaton Batman looks like he is in the same suit as '89 and Returns. So does that mean the timeline was rewritten so Batffleck was erased and Keaton was always the Batman of that universe?