Steve Weintraub interviewed Laurence Fishburne for Batman v Superman: Dawn of Justice for Collider. During the course of the interview he asked Mr. Fishburne about his role in John WIck: Chapter2. He said the following about his role:
I’m not part of the Continental world, no, but I’m a part of another world that exists inside the world of John Wick. That wasn’t something that was clear in the first movie. It’s like a part of his world that exists but you wouldn’t know about it, and it won’t really be revealed until the second movie.
You can read the other details at the link above.