Ah, that is a flashback from DOTF.
Is been a while so I guess is fine to tell it, Snyder did plan to have Jason losing his face during that story. He figured he would give Tynion a hand to kickstart his run with a bang, but thankfully, the cover leaked and editorial realized the pain in the ass that would be for trades if the story didn't actually ended in the main title and axed the idea. We were lucky.
Anyways, Dexter posted this
https://twitter.com/dextersoy/status...65528098402304
No confirmation on who is Batman but he looks a lot like Jay.