In the latest edition of WWE Magazine for June of 2012, there is a teaser of where WrestleMania 30 could possibly take place.
WWE's "The
Informer"character writes "WM29 is locked in for N.J./N.Y., but plans
are underway for the 30th Show of Shows. The location? Let's just say
it's a city of 'Olympic' proportions."
The summer Olympics are taking place this summer in London.
Although personally I dont see an event as big as this being hosted outside the U.S andcoming to London.But if it does I know where I'll be..