it appears there are 2 types of pilot?

Having seen the latest official trailer it appears that there may be a serious twist in this movie that takes everyone bye surprise. There is a shot of a tall human with a bald head getting into the Telescope chaire and when he sits in that chaire it covers him in a suit and his head is covered in a helemt that from side profile appears like an elephant with a small trunk. But also in the film are beings in suits who look excactly like the being found in the chair in alien 1 they have a massive pipe from there front head going into there abdomin. I dont think the guy in the chair suit is the same as those beings, maybe he is the driver of the hovering ship and they are the drivers of the horseshoe ships but they can not be the same as they look totally different. It appears that in Alien one of the engineers is in that chair in an engineer suit but the official driver would be encased in a suit that comes from behind the chair.