Jerry Jones is hard to read sometimes. I can't tell if he's saying stuff because that's just what he thinks, or if he's just being brutally honest and not as tactful as the other owners.
My feeling is the market analysis will show that Oakland is the weakest market. If I had to guess which of the three markets would lose the NFL, my guess is Oakland. Recent articles seem to hint at a Rams-Chargers split in Inglewood and Oakland moving to St Louis to fill the void. Even when they talk about Spanos working for the greater good, it can be a hint that they see the Inglewood project as better for the league (at least at this time), so they would rather that get done instead of the Carson project.
If I had to guess what I think happens now is 65% Rams move to LA (up from 60% I had until recent developments, down from 75% I had before Carson came up)... If that happens I think the Chargers look to stay in San Diego, however Inglewood remains open for them. That means that Oakland will not be the second team in LA, so instead they push them towards going to take the better option in St Louis.
Of course St. Louis Rams fans wont be super stoked about the Raiders, but I get the feeling the NFL bets that the city takes them in because the Raiders are better than no team, and the city has demonstrated they should have a team and can support a team.
The Chargers can remain in San Diego, have a much more "real" threat, if San Diego can't get anything done, and free to move up north if they don't, Kroenke gets his stadium built, NFL gets more money, Raiders get a great new stadium, St Louis gets to keep the NFL. Right now I get the feeling the NFL would prefer that, and would like to see it happen. Of course it all depends on a number of things, including Spanos and Kroenke getting chummy with each other (I'd take a guess they're not exactly planning to buy any BFF necklaces), but it might be the end result of all this craziness.