Everyone wants something a little different than the original formula without betraying the spirit, it's a normal thing when expecting a new movie.
I'd like to see the return of more horror/tension like probably all of us here, keep the gore but not in a cartoonish way like the last movie, way less humor (not zero though), and maybe a more mystical approach of what the predator is for the protagonists, through their culture and beliefs.
Seems like the perfect setting for that IMO.