Regarding a team in LA, Peter King says:
As for the team to play there, the obvious candidates are San Diego (likely the favorite, unless a stadium gets built there, which appears increasingly unlikely) or Oakland. I'd say San Diego's more likely, but this thing has a couple of years to play out.
Always good news, even if it is speculation.
http://sportsillustrated.cnn.com/2010/writers/peter_king/11/14/monday-morning-qb-week-10/1.html