I love the old school aesthetic, but I'm not a fan of low resolution rendering. When I play Doom WADs I have my rendering set to my monitor's native resolution and everything looks beautifully sharp and defined. It's great. This really looks like when you set the rendering scalar to the lowest possible value in a game with that setting. Also, I can't tell if it's just an effect from the trailer, but is the game also simulating the screen door effect? The commitment to the look is admirable, but I hope I can tailor the visual to how I like my throwbacks.
Besides a tiny bit of bunny hopping over lava, there wasn't much cool movement shown but I have hopes you'll be able to zip around. Regardless, this looks cool and I'll undoubtedly add it to the ranks of DUSK, Amid Evil, and Ion Maiden of excellent old school shooters.