Heres the current AP poll (7-17) and their post season results:

7 Tennessee L 42-17
8 Boise State -
9 Indiana L 27-17
10 Arizona State -
11 Alabama -
12 SMU L 38-10
13 Clemson L 38-24
14 South Carolina -
15 Miami L 42-41
16 Ole Miss -
17 BYU W 36-14

BYU will likely pass the following teams in the rankings- SMU, Miami, and Clemson.

BYU will likely NOT pass the following teams - Tennessee, Indiana, Boise State, Arizona State

Depending on the outcome of the rest of the games, BYU could pass Alabama, South Carolina, and Ole Miss

That means BYU will likely end up between 11 and 14. Root for the SEC to lose.