For next year's Worlds in 2011, I have a very strong feeling that will it be in Orlando, FL. I think this because one should note that there always happens to be a cycle every year for a worlds location. In fact, the locations always seem to rotate between Orlando, San Diego, and Hawaii most of the time. Take a look below and you can see what I mean.
2004: Orlando, Florida
2005: San Diego, California
2006: Anaheim, California
2007: Kona, Hawaii
2008: Orlando, Florida
2009: San Diego, California
2010: Kona, Hawaii
Okay, once, there happened to be a Worlds in Anaheim, but it should be noted that 2010 seemed to have skipped Anaheim as a worlds location, even though it seems like Anaheim should've been the spot to host Worlds this year. Thus, this means that Orlando, Sand Diego, and Kona are/have been the primary locations for worlds, and based on what we see, Orlando, seems like the strongest possibility.
However, because of the fact they skipped Anaheim for 2010, Anaheim does have a good chance of being a Worlds location for 2011, especially since it has been somewhat rumored that next year's worlds might be in California once again.
As for what would be my wish for a worlds location next year? Well, I would definitely wish that worlds will be held in Chicago in 2011. I think this because I think Chicago should be cheered up a bit after it was the first city to be kicked out in the 2016 Olympic Bid. Chicago also has a lot of great tourist sites, like the Sears Tower and some of Chicago's museums, that will be great for any that goes to worlds for vacation too. Of course, I kind of doubt that Chicago will be a worlds location, but still, I wish that Chicago will host a Pokemon worlds competition someday.
Otherwise, Orlando is the most probable location for next year's worlds. Anaheim can be another likely possibility, and I do wish Chicago will one day host worlds.