It's been a while since we last heard about Doom 4, although back in 2012 there were rumors that the game might have been cancelled, although those rumors have since been refuted. John Carmack then stated that Doom 4 will be "done when it's done" and while we appreciate the developers trying to create the best game possible, there's still no word on a possible release, let alone an official announcement of sorts. Well as it turns out it seems that the reason why Doom 4 has yet to make an appearance, which some speculated could take place at Quakecon this year, is because the game had to undergo a redesign.
Ubergizmo , Doom 4 Underwent A Redesign Due To Its Lack Of "Spirit" And "Soul", Doom 4 Underwent A Redesign Due To Its Lack Of "Spirit" And "Soul"