The ACC is at least kicking the tires on Cal and Stanford, though how seriously they’ll make the effort, nobody knows. I’m guessing probably not that seriously. If those schools carried a significant financial impact with them, they wouldn’t be where they are currently, which is essentially homeless come 2024.
One of the league sources who spoke to Pete Thamel about this said explicitly that there would be “no windfall for current members” by making these additions to the ACC. So what’s the point? Other than getting the ACC Network in a few more homes on the west coast, I have no idea.