With Liu Kang apparently close to being cast, and the role of Sub Zero having already been set, it seems likely that other major Mortal Kombat names will find actors in short order. Characters like Johnny Cage and Sonja Blade, would be conspicuous by their absence if they somehow weren’t in the movie, so that seems unlikely. Writer Greg Russo has spoken about the difficulty of figuring out which characters to include in the new movie. There are so many different options available, and too many to include everybody, it seems likely that some fans’ favorite characters are destined to be left out.
Article source: https://www.cinemablend.com/news/2478209/the-mortal-kombat-movie-may-have-found-its-liu-kang