The MWC added Houston, SMU, and Navy and our division looked like this:

MOUNTAIN: BYU, Boise, Air Force, Navy, Houston, SMU, Utah St., Hawaii
WEST: SDSU, Fresno, SJSU, Nevada, UNLV, New Mexico, Wyoming, CSU

BYU could still get 4 or 5 P5 opponents each year (with Hawaii exemption). Schedules could look like this:

2019-
Home: Utah, USC, SMU, Air Force, Hawaii, Boise St.
Road: Tennessee, Toledo, Navy, Houston, Utah St., SDSU

2020-
Home: Michigan St., Missouri, Utah St., Houston, CSU, Navy
Road: Utah, ASU, SMU, Air Force, Hawaii, Boise St., Stanford

2021 -
Home: Utah, ASU, SMU, Hawaii, Air Force, Boise St.
Road: Arizona (in Vegas), USC, UNLV, Navy, Houston, Utah St.

2022 -
Home: Washington, Virginia, Utah St., Wyoming, Houston, Navy
Road: Utah, SMU, Air Force, Hawaii, Boise St., Stanford

2023 -
Home: Tennessee, Utah, Stanford, SMU, Air Force, Hawaii, Boise St.
Road: Navy, Nevada, Houston, Utah St., USC

EDIT: Note, BYU would play in California AND Texas every single year! And, with Navy and Hawaii on opposite schedules, get the East Coast road trip and Hawaii trip in opposite years. Keep the Boise St. and Utah St. rivalry games in conference - and the Holy War continues uninterrupted.

BYU likely gets on national TV (ABC, FOX, ESPN, ESPN2, or FS1) at least 9-10 times per year.

The only scheduling casualties would be:

- '19 Washington home game moved to '22
- '21/'22 Baylor and '20/'25 Minnesota series (moved?)
- '22 Oregon road game (moved?)
- '23 Virginia road game moved back
- Liberty and USF series
- back (road) half of UMass and NIU series
- Idaho St. home game