Which "dead game" would you like to see reborn?
This is a Three Musketeers style game that came out in 1984 from Fantasy Games Unlimited (FGU). It was well written and even had some excellent supplements for it. The rules had an excellent background/career system for characters and a solid combat system that was engaging and diverse. If it were to be made over with a fresher system it could really shine.
The Fantasy Trip (yes, I know GURPS is the evolution of TFT, but THT was lighter than GURPS).
Lords of Creation.
Lace and Steel.