I figure they’ll have to. If they don’t get from the Jetsonsverse to 2x10^5-1, what’s the point?

Probably I mean it is the multiverse saga and the last movie before Doomsday

Here is how I see it

They could possibly Reed mentions it at some point

It just subtle Easter Eggs

Or we do know the Fantastic Four will have to get to Earth-616 so maybe it will be shown or that will wait until Doomsday

Well the movie is set in another universe so it's a multiverse movie by default.

Yes. There were a couple of easter eggs on Reed's chalkboard.

Aye maybe 🤔

Reed talks to some kids about the Multiverse.