The orignal Mario Strikers actually had no hazard in courses. It was just fields and wasn’t criticism of the games, only thing was bowser would jump in and make a scene, but obviously he was the hazard, not the course. I think based off the choices they made, they would need to re-balance a couple things if they added them again, the fields are way too small to just add hazards again.
They’ll have to make them bigger. You already get hit way easier then ever before. Adding hazards right now would make the game way worst honestly. But I doubt they’ll consider making the fields bigger. Thus I doubt any hazards will be added.