I know that some fans (doesn't apply to everyone) are madly angry with the recent situation (mess with Prometheus and Covenant and now The Predator) and try to cheat on themselves focusing on non-movie mediums like books, comics and video games ... but those are just bonuses (like great Alien: Isolation). Alien and Predator started as movies and should be continued as movies. Unfortunately they are not great anymore.
To cheer you up. Almost every franchise established in the past suffers from its successors. Alien, Predator, RoboCop, Terminator not to mention Star Wars. Welcome to Hollywood.