Well #2 and #3 aren't happening, so I voted #1. The NFL makes too much money from these bogus pre-season games to cut back on them, and the NFL has already come out and said they don't plan on expanding the league for the Los Angeles market.
I live in L.A. and the newest news out here is that the Stadium project has passed all their permit processes so far and is now waiting for a December Environmental impact report to clear. They also talked to the NFL and the NFL asked them to include enough facilities to accomodate 2 seperate NFL Teams at the new Stadium. This means two seperate Training Facilities, two seperate Coaching Staff Offices, etc. It looks like the NFL's overall plan is to eventually house 2 Teams in the L.A. market. The Project Leaders actually had to cut the square footage of the shops/businesses they were planning on building around the Stadium to accomodate this. The plan is that the first Team in L.A. will be owned by the guy financing the Stadium Project, the second will be decided at a later date. Also, the Rosebowl has been contracted to house the NFL Team that comes over until the Stadium Project is concluded. They took this step because they plan on having a Team signed this next off-season, and that NFL Team will either play one more lame-duck season in their old home (which isn't likely because fans probably won't support a team they know is leaving) or they'll relocate early and play in the Rosebowl.
The Teams that were mentioned as the most likely candidates for relocation: Jacksonville, Buffalo, San Diego, New Orleans, San Franciso, Oakland, St. Louis.
That's all I got recently...