"or early/mid production trailer"
I'd put my money on this one, then. I kind of forgot about that characteristic of teasers
Anyway, I'd have to disagree on how this "looks better" than the game. The models look almost like plastic. They may have a higher poly count (which was probably toned down for the final product), but there's something horribly wrong with the textures.
But would it be an end-production trailer? No way. You can see how graphics are extremely different, so they must've gone through massive changes until the final models were ready. And we also have that Neith, which is obviously a prototype model.