Sure, Batman still feels guilty about Jason’s death, but maybe he’s finally reached a point where he’s ready to take another wayward youth under his wing.
The easiest way to pull this off would be throwing Nightwing into the mix.
Aside from Alfred, Dick Grayson has been part of Batman’s mission the longest, and many casual viewers are already familiar with him.
Then there’s the matter of a third Robin possibly entering the fray.