Oh yeah, I had forgotten about the weird "games" exception. At least that means they'll keep parts of Rosetta 2 around in the code, but they could also end up doing some weird whitelisting for the specific games they want to support and not let anyone else keep using it.
No, those need to stay (at least the ones needed to run the targeted "old unmaintained games"). What can go is all the x86_64 slices of system binaries (i.e. bash, perl, etc etc)