This is the news that first started being reported online a couple of days ago.
Apparently, Keaton - who last played the Caped Crusader in 1992's Batman Returns - is in talks to appear in a movie about The Flash.
The same reports also suggest that Keaton could star in more DC movies as well.
I was ten when Tim Burton's Batman movie came out. So, to me, the silver screen version of the Dark Knight was Keaton.
Well, that was until Christian Bale did such a great job in the Dark Knight Trilogy in recent years.
I welcome the news about Keaton, though. It's going to be interesting to see how they revisit Bruce Wayne all those years after the 1992 movie.
Which makes me wonder - does this now mean that the stints of Val Kilmer and George Clooney still a part of that Batman movie era?