In DKSA Hal is revealed to have fallen in love with an alien woman (amusingly, she looks like a blob) and had a son. He returns only briefly when Batman asks him back. (And if you ever wanted to see Hal the God, that's it. Considering that ASBAR is roughly early continuity to this universe, it's an interesting character arc there..y'know, if you're obsessed with that sort of thing)