WrestleMania 34 is set to feature in New Orleans during the city’s tricentennial celebration in 2018. However this was not always going to be the case. According to a source from PWInsider, the original venue was set to be the Metlife Stadium in East Rutherford, New Jersey.
The last time New Jersey hosted WrestleMania was in 2013:
With New Orleans hosting a year after in 2014:
Therefore, it seems like that the Metlife Stadium is in the running for hosting WrestleMania 35, much to the disappointment of all UK fans who pleaded for a London based venue, although nothing has been confirmed yet.
https://youtu.be/U4r26kTMakc?t=10s
Opinion:
From an unbiased logical point of view, it makes sense to have WrestleMania in the US, both logistically and financially. And if there were ever a venue for UK and European fans to visit, New Jersey is on the East coast which is one of more accessible points to those who can hop over the pond.