Given both the glut of 1 and 2-loss teams, and the complexity of the tiebreaker system, it might be best not to get into a bunch of iffity-ifs until maybe the last week of the season.
At this point in the season, the answer to every, "What happens if....." depends on the outcomes of multiple games often not involving the team in question.
You'd need a NASA supercomputer to go through all the possible permutations. Even then, you'd end up with a bunch of percentages of probability, not an answer.
Let's just enjoy the season and come back to the discussion during barn week.