I notice the Revisionist sheet doesn't have a Cohort slot pre-filled out. Do they not get a starting cohort, or do they get a choice of type?
I see Inversion lab has been changed so it's a flashback mechanic. I'm just imagining a Revisionist crew using an Artifact in a heist to steal that very same Artifact and resolving the paradox by sending the stolen one back to their past selves.
Still trying to reconcile how it all works without involving "actual" time travel, being a nerd, but I guess Timey Wimey can easily be made into Archivey-wivey once we're playing at the virtual table. I think having Revisionist crews in the world would make traveling across servers an interesting experience if they're running independently, and a person might find their home server's history changed when they return... New thought: Shades of forked Users who couldn't properly return because their "new" past stayed there.
The idea of the Census adds some interesting ideas as well. What happens if a Census occurs when there are two temporally displaced instances of an item or PC? I suppose that's one possible source/explanation of Heat if the PCs get too reckless, as the system erases the redundancy and flags the crew for their temporal shenanigans. It might also be the fate of the Mysterious Strangers to get deleted at the next Census.
So many tropes to play with.