Although John Wick 5 has been confirmed, there is no information about casting yet, so it's unclear whether the franchise will maintain the tradition of casting martial arts stars in important roles. The John Wick franchise has already welcomed Donnie Yen, Scott Adkins, Yayan Ruhian, Mark Dacascos and Hiroyuki Sanada. Each movie seems to increase the number of actors with top-level martial arts training, and John Wick 5 could continue this trend. With martial arts becoming increasingly important to the appeal of John Wick, some big stars could be tempted to join the franchise.

https://screenrant.com/john-wick-5-movie-martial-arts-stars-actors-wishlist/