What happens if the token issuer wants to collapse the whole system and go back to just BSV tokens?

Are the tokens created by this system permanent due to OP_RETURN, or can they be repurposed if the issuer goes bankrupt or chooses to close?

How big are the UTXOs underlying the tokens?

0 unspendable?

1 satoshi?

Several Satoshi’s? How many?

Seems there ought to be a way to recover the underlying BSV if the movie theater, bus company, or commodity exchange shuts down. No?