I know this might be a bit old but here's the only thing I've come across:
GI: What can you say about Rage? When everyone saw the shakey-cam footage people were wondering if you were making a racing game….
Carmack: It’s about 50/50 racing and first person action. It’s interesting. If we go back post Doom 3, we started making a completely different game. It’s internal name was The Darkness, which it’s obvious that someone else has taken since then (laughs) but it was going to be another spooky dark survival horror thing set on an island. We spent a lot of time going on that. But we reached this point where, “Do we really need to do another dark, spooky game?” id always gets slammed for the game is always too dark. Maybe we should do another game that’s a little brighter. We can branch out a bit more. Maybe it would be more fun to run over people with pick up trucks and ATVs. We rebooted our entire development project. We were reasonably far into production on The Darkness title and we just said we wanted to go in a completely different direction. We wound up with this post-apocalyptic Road Warrior type thing.
I think there’s going to be some neat stuff in it. We’ve got the whole outdoor wasteland – big areas, going between lots of different areas. We’re doing some of the sandbox play there. I like racing games. Mario Kart is the last game I played reasonably. That type of thing is fun.
Then you’ve got the run and gun internal shooter stuff, id’s always done well, and we’re going to do a good job on that. Then you have the sort of RPG-ish elements, pimping out your ride, getting money to buy accessories and building it up. It is a different style of game which is risky especially when you’re talking a $20 million budget, and the safe this for us to do would be to run right into Doom 4. But we made the conscious decision that we want to broaden id a little bit. We’ve got Wolfenstein, Doom, and Quake. We’re trying to bring Orcs and Elves up from the low end, and we’re going to try to bring Rage in from the high end to broaden our whole portfolio here. There’s no doubt it’s a gamble. It’s a big deal. There’s an element of stress there that we don’t have all of the advantages that we previously had going into a title, there. But we think it’s going to be pretty cool.
There will be a Doom 4, we don’t have it scheduled or a team assigned to it, but there will be a Doom 4. There’s going to be a Quake Arena sequel. There’s a Wolfenstein thing in production. We’re following along with all those. This game doesn’t have to be Doom. It’s going to be something different.
I really would like to see a Doom 4, I love all Dooms and the 3rd's storyline was great. Doom 3 jumped ahead in graphics and now it's already getting dated, I'd like to see Doom 4 with Cyrus like graphics yet better. I also think the new game should take place, at least some part of it, on Earth. It would be surreal seeing the demons on Earth with the new and improved graphics.