Radio interview with Brett McMurphy from about 47min-1hour mark.
Says he thinks Oregon/Washington/Stanford/Cal will get added and thinks they will be added within 2 years. Just get it all done with and setup one time rather than having to do it all over again later on down the line. Also said the schools understand that it could initially reduce the shares but they don't want to leave USC/UCLA out on an island and they could also have the 4 schools take smaller shares for some time before they get a full share. Also mentioned how it opens up the after dark window to bring in more revenue and then have the B10 on all day from noon til late night across 4 networks. PAC12 would probably die as the B12 would scoop up the 4 corners schools.
I think most of that info is kind of out there but the time table part is something that's somewhat new. I've always thought if things happens, including before USC/UCLA it would be in 2 years. It would make some sense to get it done and have them all join in 2024. Also makes sense to get it done before the PAC12 gets any new contract underway which could force the schools at least into a short term GOR. Either that or you tolerate USC/UCLA out on an island for at least 5-7 years and try again before the next contract.