hfc2x put in a nutshell when he said "
Yet another An attempt to recreate Doom according to Tom Hall's original vision", but this time, chances are pretty high that someone makes it the right way. A lot of work has already been spent into this and as of now, the preview video is really interesting and impressing. You should take a closer look at the development thread at ZDoom and also give him a bit of feedback and thoughts, I am sure he will be glad about it. You can also find firther information on the current project status and progress here btw.