Peter Parker is still known (Spoilers)

I don't think that matters. If the point you are trying to make is that Peter Parker identity is now known to these villains, well it already was, that is who the spell was bringing across, every single villain that already knows Peter Parker is spiderman. That's every villain from across the multiverse so considering in most iterations of Spider-Man a lot of his villains figure out who he is, this is going to mean that you will see a lot of villains from across the multiverse crossing over.

You have information that Tom will play Spider-Man again and that Andrew and Tobey know about this somehow? Because you could make thousands with that.

The spell affects everyone in the multiverse, that was the whole point. He had to make everyone in the multiverse forget that Peter Parker was Spiderman to stop them coming to our universe. The spell wouldn't have affected the other Peter Parkers, because otherwise our Peter would have forgotten who he himself was. All of the villains who came to our universe didn't even know the Tom Holland Peter Parker, they just had to know that Spider-man was Peter Parker, whichever version that was.

The spell affects everyone in all multiverse. But they just fogot about one Peter Parker (Holland), not all Peter Parkers.