This show is about stakes and it is likely not going to erase this massacre and the fallout from it. Cable showing up will be fakeout. Bishop could only do so much with time travel in the OG show
If anything this will be used as a hard lesson
Likely the most reasonable way to bring back all the dead named characters is by sinister cloning or Apocalypse rebirth
If they just time travel rubber stamp everything back to normal I'll think this show will lose major points