I doubt they move solely because they don't really have anywhere to go. From what I can find, the only metropolitan area in North America with more people that doesn't already have a team (or two) is Montreal. I think it's safe to assume no one is going back there. Portland is close behind Tampa/St. Pete in size, so I guess that's an option, but they already have the Portland Beavers AAA club. Below is a list of markets that already have a professional sports team other than one from MLB. (I've left the Brewers in just for comparison. I realize the numbers are arbitrary because someone is deciding on the boundary, but they are relavent to the discussion I feel.) 3,426,350 Montreal, QC 2,968,806 Minneapolis/St. Paul, MN 2,395,997 Tampa, FL 2,265,223 Portland, OR 1,986,965 Vancouver, BC 1,796,857 Sacramento, CA 1,689,572 Milwaukee Brewers 1,644,561 Orlando, FL 1,607,486 Indianapolis, IN 1,592,383 San Antonio, TX 1,540,157 Columbus, OH 1,499,293 Charlotte, NC 1,337,726 New Orleans, LA 1,333,914 Salt Lake City, UT 1,231,311 Nashville, TN 1,187,941 Raleigh, NC 1,170,111 Buffalo, NY 1,135.614 Memphis, TN 1,100,491 Jacksonville, FL 1,063,664 Ottawa, ON