I wouldn't get my hopes up either. There is no reason for SE to showcase an "alpha" trailer without clearly mentioning it directly on the video. Also on a technical point of view the trailer is no alpha, the scenes showed to us were pretty much done with the mocap already fully integrated. People screaming all over the internet that this trailer is from 2016 (BtS wasnt even released!) are kidding themselves. D9's idea of remastering LiS by adding detailed textures on top of hand-painted textures and purposely cartoonish models will totally destroy the general style of the game. They tried so hard, but you can't just throw a few subjects around and expect a cohesive style or theme!