If we do a run now but wait to submit it till after all the system have updated (playing on a switch) would it be allowed?

Is a run where you befriend all types of pokemon possible, a run that could be added?

Panda I think you're right, each world would have to be it's own thing. As for verification of a run would have to pretty much be a check list of each enemy

Can there be a run where you have to go out of your way and kill every enemy before beating the game? Oviously all enemies would have to be mapped out, but if that happened would it be possible?