hopefully not. Apple hopes to have security update 15.0.1 first out, and that one may have the FaceID fix for iPhone 13.
Normally .1 update is about two months after initial OS release, and considering this has SharePlay and other big feature not in initial release, Apple will want to make sure everything is running smoothly before launch.
besides, 15.1 is NOT ready for prime time. Still too many bugs to be released, like iMessages photo bug (which Apple is aware, but taking while to fix)
worse case scenario, mask fix will be on 15.1. Two month isn’t long. And putting in passcode is not that hard. Just minor inconvenience.