London has had three games in each of the last three seasons, but according to Will Gavin the UK will be gaining one more game.
In addition to the 4 games next season, same source expects there will be a team playing more than one game in 2018 #NFLUK
— Will Gavin (@WillGav) November 30, 2016
The NFL has scheduled three London games in each of the last three seasons, so four games in one campaign would be a new high. The first London game was in 2007.