No, it does not expire. You can keep following up until they schedule you.

Living and working outside of the U.S. cannot have any impact on one's H4 status, because outside of the U.S. one is not in H4 status or any...

You should write D/S, since that is the correct answer.

it depends on the reason for the revocation.

He does not need to include you. You would have to file your own application for adjustment of status.

If this is the New Jersey fake school, there is a class action lawsuit you can join and CIS will not be able to do this. But if there really was...

You can renew the I-485 at the immigration court if USCIS puts you in removal proceedings. Or you could file again.

Can you register in July, '22? If you mean can you file the H1b application by then, it depends on when you get selected.

Neither visa is quick. If you get married, you can do a spouse visa, and if not, you can do a fiance petition.

You should find another employer and port to them immediately.