In September, weekend of the 22nd, FaceIt is hosting a CSGO major at Wembley Arena. Thought people would probably find this quite interesting as i can imagine some a lot of people will be wanting to go down thought i'd see what interest other members from the community have got! https://www.faceitmajor.com/ - Tickets go on sale in 31 days, and it should be a good event.
This actually looks great! Have they said how much tickets will cost for the weekend? This is also prior, looks like a good year ----- https://wembley.csgoleague.com/tickets/
That's the event for their league, but doubt it would be as popular and csgo major is bound to be a lot better event for atmosphere and in general really.