FPS fans were rocket-jumping with joy yesterday at the news that Id is working on a new 'franchise' (game), not based on Doom, Quake, Wolfenstein or Commander Keen. "It is a new id brand with an all-new John Carmack engine and I think that when we show it to people, once again they'll see, just like they saw when we first showed Doom 3, that John Carmack still has a lot of magic left," said Id's Todd Hollenshead to Gamesindustry.biz.
Of course, we're assuming it's an FPS, but as Carmack has been dabbling in mobile game RPGs recently it could be anything. Although, by 'anything' we mean 'edgy shooter with demonic themes and plentiful use of normal maps and shader effects'.