I'm against the whole Disney Theme Park Chain idea as Disney IS NOT a Six Flags park, it's a destination, it's been that way for over 50 years. Here are some reasons why not in these locations....
1). Las Vegas,NV - Change from kid friendly place, now going back to Adult entertainment capital of the world.
2). Baltimore,MD - Rain, rain, rain.
3). San Francisco,CA - LAND.
4). Seattle,WA - See Baltimore.
5). Phoneix,AZ - Again, think destination resort, not chain.
6). Houston/San Antonio,TX - mabey the best bet, but still not a good choice.
The problem with a Disney chain of parks is the fact Disney dosn't get their money from the immediate local community, they get it from travelers. Cedar Point can build new rides every year, but they cost $14 million. Mission Space cost upwards $300! And to even ponder Expedition Everest.... ouch.
Remember the phrase to live by, Quality Over Quantity!