In the first instalment of the John Wick series, Viggo Tarasov describes John to his son as the man one would send to kill the fucking boogeyman. 

John Wick 1
Source: Blogspot

And ever since, we have wanted to see what John Wick was really like before he got married or got a dog.

John Wick & His Puppy
Source: Movieweb

Well, a new TV show might just tell us that. According to LADbible, a John Wick prequel TV series is already in production and is called The Continental

John Wick At The Continental
Source: Comicbook.com

Will Keanu Reeves be a part of the show?

Well, he is a nice guy, so he might say yes. But that's just me hoping. The producers have refused to speak about the matter. 

Keanu Reeves as John Wick
Source: Reddit

And the show will anyway be aired after the release of John Wick 4. So we've got time!