Is anything from The New 52 or Rebirth going to be erased?

[Digifiend]

And that brings up a good point - who knows the timeline was meddled with? We know that Cassandra Cain and Stephanie Brown know as they found out about their Batgirl tenures at the end of Tynion's Detective Knights run. Tim Drake knows as well, and due to the method he used to get his old memories back (he was trying to remember Conner after his time travelling adult self mentioned him), we know Zatanna also knows. Wally West and Bart Allen obviously know, as does Conner Kent since those three dodged the changes by being in the Speed Force or Gemworld. Booster Gold (being a time traveller) and Superboy Prime (who was stuck in the Source Wall) should know as well. Anyone else?

[Denirac]

And that brings up a good point - who knows the timeline was meddled with? We know that Cassandra Cain and Stephanie Brown know as they found out about their Batgirl tenures at the end of Tynion's Detective Knights run. Tim Drake knows as well, and due to the method he used to get his old memories back (he was trying to remember Conner after his time travelling adult self mentioned him), we know Zatanna also knows. Wally West and Bart Allen obviously know, as does Conner Kent since those three dodged the changes by being in the Speed Force or Gemworld. Booster Gold (being a time traveller) and Superboy Prime (who was stuck in the Source Wall) should know as well. Anyone else?

Prime was confirmed to know everything by Johns already in Shazam #10 "AFTER EVERYTHING THEY'VE DONE?" Plus Johns stating in an Interview that he knows

[Mr.B]

Prime will be eventually folded in the new timeline proper.

[SixSpeedSamurai]

Reading this thread gave me a headache. I'm glad I pretty much only follow Batstuff now, for the most part they have not been as affected besides Tim/Steph/Cass.