8. Could We See Earth-1 Jay (And Other Doppelgängers)?
It's mentioned in this episode, and is quite obvious really, that having other versions of Earth means there's a good chance of having other versions of the characters living there, where Barry could be an electrician. However, does that also mean there are characters from Earth-2 who have doppelgängers on Earth-1 that we haven't met yet? It stands to reason, after all both Atom-Smasher and Sand-Demon had none metahuman counterparts here. So, whoever Zoom is, does that mean he's someone who also exists in Earth-1? And what about Jay Garrick, is there another version of him out there, one living a non-superhero life, and could we eventually meet him as well?