One estimate came in at $30MM per school per year going forward after the LA schools bolted. That's not bad. A little less than what is made now. But not much.
The downside is it doesn't come anywhere near the Power 2. So the plan is to add the large markets of the ACC in a partnership and potentially add revenue by adding a new high profile Vegas game and by creating more compelling OOC games. So maybe fewer Weber State openers in exchange for games vs. UVA, PITT, BC, Miami, etc.
Or you drop the 9-game round robin to add another ACC matchup.
It won't play catch up to SEC or BIG but no one has that expectation. I do think it will keep the Pac in-line with the Big 12 and obviously the ACC.
You mention that Utah is out because they have a small fan base. I think you're just repeating CB assumptions. Because you mention attendance and viewership as critical, yet Utah has consistently been in the top 2-3 with both. In terms of competitiveness, validity and prestige, the Utah brand right now is as strong as anyone outside Oregon in that list.
To be fair, I think the latter is the most important factor of any in the fight for #3.
Just my .02