If all favorites win, it's a Georgia-Texas rematch.
Hypothetical upset results assuming all other favorites win:
If Ole Miss knocks off Georgia, it's Texas-Alabama
If Tennessee knocks off Georgia, it's Texas-Tennessee
If Texas A&M knocks off Texas, it's Texas A&M-Georgia
Alabama scenarios, assuming no further losses.
Ole Miss > Georgia
Tennessee > Georgia AND Vandy > Tennessee
There are other bizarro circumstances that could happen, but these seem the most feasible.
Not making the championship game is not the end of playoff hopes.
Hypothetical upset results assuming all other favorites win:
If Ole Miss knocks off Georgia, it's Texas-Alabama
If Tennessee knocks off Georgia, it's Texas-Tennessee
If Texas A&M knocks off Texas, it's Texas A&M-Georgia
Alabama scenarios, assuming no further losses.
Ole Miss > Georgia
Tennessee > Georgia AND Vandy > Tennessee
There are other bizarro circumstances that could happen, but these seem the most feasible.
Not making the championship game is not the end of playoff hopes.