God of war 4 is coming to pc next year, will there be a trainer for it?
Welcome to the community.
Trainers are only made if the game is popular amongst WeModders, since the game isn’t released yet, this data is not available. It’s not possible for us to be able to look into the future. WeMod is awesome but we haven’t quite mastered time travel just yet. 
Learn more about how trainers get made in this recent post: Suggestion: Hearts Of Iron 4 on Windows Store - #2 by Ravenfyre.