Never ever seen anything like that in europe and I live in europe and have traveled through most european countries. Never have I seen wrestling in any capacity. Japan, I can give you that because even I have some sort of image of japanese wrestling in my mind. Australia? Popular? What is your definition of popular?
Latin America is just an even poorer version of america so that goes without saying.
I imagine that it is easy not to see something that you're not looking for. It's there, especially in Russia and Britain, who have their own organizations. Britain in particular has avid pro wrestling fans. Popularity has waned a bit in Australia, but is still popular enough that several current WWE pro wrestlers have come from Australia, and WWE will actually hold shows there from time to time. Same with Europe. They did a European tour less than a year ago, through Germany, Spain, Czech Republic, Hungary, Switzerland, Austria, Italy, France and the Netherlands. They went to Italy, Ireland, Spain, Germany and Portugal less than a year before that. Whether someone who isn't a fan notices or not, for WWE to actually go somewhere outside of the US there needs to be a certain degree of popularity. It's similar to the UFC. The UFC will go to places like Britain, Australia, and Brazil bc they will make money there, it is no different with WWE.
Now, there may be a misconception as to just how popular WWE is in the States. It isn't extremely popular. You could say that maybe the average American knows who John Cena is, but he has been in movies and on talk shows and has been doing those things for quite a while now. He gets name dropped in rap songs by popular artists. Most people aren't going to know anyone else on the roster, except maybe Ronda. It's similar to Conor and the UFC. Both UFC and WWE are popular enough to hold sold out shows repeatedly, basically anywhere they go, but they go to places they know they have a degree of popularity. Do either have the level of popularity here that the NFL or NBA has? Do they have the same popularity elsewhere in the world that soccer has? No, not even close. But both have a degree of popularity. I'd wager that WWE has more legitimate fans than the UFC though.
Latin America doesn't have much in common with the US or Canada, just so you know.