My concern about this is that the developers will probably not get right what Doom is about. I saw lots of people complaining about it should be faster paced and needed more colors. Honestly I'm fine with these, what worries more about is if they make the game looking too much like Mortal Kombat with the fatalities or have horde gameplay, which is something far more boring than the original doom's.
I always saw Doom as some sort of board game, where you had to explore the enviroment and the monsters were placed in a way that took advantage of the level design. You need to prioritize some monsters over anothers, move yourself to dodge the bullets (or take cover, in case of archvilles or hitscan dudes). Then you combine this with your weapons, which has it's own streghtness and weakness, and multiple ways of approaching certain setpieces (and in different orders, due to no linearity), secrets and stuff, and you have one of the most rich FPS done.
What worries me most, besides the level design, is the enemies design. They need to feel pain when getting shot, and have more distinct sounds and visuals. (colors help, but it's not a must, IMO). Seeing these videos actually got me surprised with how this was well done with Doom 1 and 2. Some scary stuff would also help. I mean, Doom never was meant to be a survival horror, but it certainly has some weird and disgusting textures heh.
In the other side I was surprised with the a bit faster paced and monsters that were just there (roamers, not only setpieces), which gave a lot the old "doom feeling". The soundtrack was interesting, remembering me Wolfenstein: The New Order (not all songs from the first two games were rock/metal)