With the likelihood of the Raiders moving to Las Vegas, this has an impact on at least three expansion proposals.
1. San Diego: Their was a contingent of the media and public, and even another influential investor, in SD that were negative on the MLS proposal because they were holding onto hopes of bringing the NFL back, that hope was based largely on the Raiders moving to San Diego. With that hope shattered, the NFL is not likely to disrupt the MLS stadium proposal.
2. Las Vegas: Obviously, with a new very expensive tax-payer funded stadium, there will be serious interest from investors and public officials to bring MLS along. The league has already done research on the market, as they had a stadium proposal and investment group pretty far along in the process a couple years ago. The mayor was deeply in favor of that proposal, but the stadium required public funding/land grants and ultimately did not have the political support for that. Another investor prior to that also had interest, but was shut out at the time by this other proposal. Of course, rumors surrounding the potential involvement of Beckham are also floating around.
3. Miami: As noted above, David Beckham has ties that could bring his MLS interests to Las Vegas, leaving a vacuum in Miami. Nobody knows the details of Beckham's contract situation, but it has been speculated that he is stuck with Miami if he wants his discount. Perhaps that's not the case, perhaps he doesn't care and is willing to leave Miami and his discount behind for the path of least resistence in LV. Bottom line is that it appears is that he continues to struggle with Miami, and local officials have recently said that they have not heard anything from his group in months. Perhaps he has been stringing along Miami with the expectation of moving along to LV? Who knows.
Basically, San Diego and Las Vegas MLS were obviously boosted by today's news, while Miami's odds were reduced. While I don't think this will ultimately have an impact on any of the cities (SD is getting in anyway, LV will not, and they will eventually get Miami figured out) but when you look at all the factors, the odds were changed today.
No longer a likelihood...