I don't see why bright colors automatically = retro camp wooden horror movie.
That's a lot to assume from a line or two from the trailer, and frankly, the original films are full of similar leading lines, most of which either invented themselves or worked in their context. I also don't think anyone's wooden or campy so far, but that's because I don't see anything wrong with Logan Marshall-Green's performance. He's playing a gung-ho, somewhat foolish daredevil scientist. Mission accomplished.