Its irrelevant. People thought the fighting game genre was dead before SSIV and the new Mortal Kombat came out. People thought 2D platformers were dead.No, but it's possibly the closest modern series to it in playstyle. Certainly the only one that isn't an indie or completely unknown FPS. Name me something closer?
Doom is a big name. Unlike Serious Sam, it has the power to bring in big sales and remind the industry and the players that the older-school style of FPS games are still fun.
It doesn't need to be exactly like the old school level design. Doom 3 had a lot going on for it and would have benefitted a lot from some larger, more open areas(apprently the tech limited this). Seeing as the technology that made RAGE clearly allows for this, I wish they'd have kind of rolled with some of the stuff from Doom 3(especially the dark, evil, sci-fi atmosphere) and expanded on it. I'm not saying to make it on the same space station as Doom 3, but I'm not happy with fighting on Earth when it seems its daylight half the time. Thats not Doom to me.
I feel there's a good combination of classic Doom and Doom 3 that could be rolled into a fantastic game that had its base in older-school FPS games, but still feels fresh. This looks like they're just taking it somewhere completely different.
EDIT: Ok, that tweet is reassuring.