Unicraft are planning to produce the Dornier DO-19 "Ural bomber, for some time on 2010 or 2011.Actually a pre-WWII design, that flew as a prototype but did not go into production.
There was a 4 Engine Bomber competition, which luckily once the military sponsor died the armaments programs shifted back to Tactical Fighters/Bombers!
unicraft: http://www.unicraft.biz/
http://en.wikipedia.org/wiki/Dornier_Do_19
