In their October listings, My Entertainment World included a small tidbit about the John Wick 2 story.
Update: From the Seeking Alpha Transcripts, it looks like the European location will be Rome. Regardless of what they said about a September 2016 release date in the press release about the reality game, here they are saying the film has been added to the 2017 slate. The Numbers is also currently showing a release date for 2017.