Toucharcade.com has an interview up done with John Carmack and Tom Mustaine regarding their recent iPhone releases. There are a fair number of neat tidbits in the interview concerning their future plans, but one project in particular stands out. John Carmack speaks:
So I like the idea that Doom Classic stays faithful to the original with OpenGL rendered graphics with filtering and a good framerate as well as slightly better sound quality and a number of these things… but it's still essentially the same game with a brand new finely crafted control system on it.
What would be cool is then go ahead and take all the things I'd like to do with it. (And my internal name for this is Doom++.) Where you take all of the art assets and modernize the gameplay in some of the ways we've learned to make better games since then. Make brand new levels, carry a story through it, and do some modern things. We haven't committed to any of this, but Tom would be the perfect guy to run through all this stuff since he has experience all the way back to the original Doom levels.
Could we be getting a new Doom game with classic assets? Full interview text is here.