The Young Justice group has a few issues it needs to sort out first.
Doom Patrol needs to be re-established.
Black Lightning needs to be the father of Thunder and Lightning again (they were made into his cousins in New52, and I don't know if they were turned back).
The Flash... I haven't touched it in awhile. No idea where it is.
That was literally how Superman and Action Comics Rebirth began, but Bendis nixed it to make Jon the 39,276th teen hero with no personality with a widely unpopular age-up.
Steel would need to be re-established.
Haven't heard a peep from Ryan Choice since JLA Rebirth.
No. No more Harley for me.
Isn't Swamp Thing more horror related than kid centric?
Yes. With Geoff Johns writing her, of course.