For the first time this season, the NFL could flex out Monday night games. This game (Chicago Bears @ Minnesota Vikings) would be a good candidate for them to choose. According to https://www.nfl.com/schedules/flexible-scheduling-procedures Monday night games between weeks 12-17 may be flexed, and the deadline to announce is 12 days before the game, which is Wednesday, Nov 15. Question resolves if announcement is made or after deadline passes.