WOT Express: NA and EU Will Be Merged Into EU

By the end of this year, WG wants to complete its ongoing unification of the WOT EU and WOT NA regions.

WG won’t do anything with the servers. NA players will still be able to play on their servers, physically located in NA, but it would be under one World of Tanks client.

source: WOT Express Donators only article + reddit discussion about it