According to Dave Meltzer in this week's Wrestling Observer Newsletter, twelve different cities were named in a recent WWE-produced marketing survey, asking previous 'Mania patrons about which cities they would be interested in traveling to.
The list includes London, Chicago, Jacksonville, Las Vegas, Santa Clara, Houston, Dallas, Philadelphia, Toronto, Miami, Orlando and Tampa. Tampa, of course, is already set to host WrestleMania 36 next year.
In addition to WWE apparently considering a London WrestleMania as a very real possibility, it's notable that Chicago, Jacksonville, and Las Vegas (the locations of AEW All Out, Fight for the Fallen, and Double or Nothing) are listed sequentially.
Conspicuous by its absence on the survey is Los Angeles. Stories emerged earlier this year that the new Los Angeles Stadium at Hollywood Park (set to open in 2020, and will play host to Super Bowl 56 in 2022) appeared to be a frontrunner for WrestleMania 37 in 2021.