So as far as a Florida like update before the end of the year, my prediction is for constant smaller and non publicized updates.
Logically they can do more damage, and put more people out of jobs if they just constantly update, maybe every one or two months. The idea is to never allow any group of sites/companies to remain in the top for more than a month of so, then you smack em with the penalty hammer and bury their sites. Shuffle and repeat. This way everyone is hurt even the big companies. In my opinion this is most efficient way to cause the most damage and put the most people out of work and thus my prediction for the coming months and years.
From what I've seen this year, it's clear that goo has made a firm business decision to eradicate a large percentage of free organic traffic on lucrative keywords. They don't appear to care if search quality is lost in the process. It's all about increasing revenues and using their monopoly to bully the world. Show companies that the only thing that "works" is to fund the adwords account.
I think before the end of the year, even the big companies which now appear to be in favor, will also get hammered. Of course, a few of the very top adword spenders will miraculously slip by unscathed as they usually do.