I've had a few ideas in my head for my next game for quite a while, but have been unable to concretely pick one.
Soulstorm- The boatwreck format, which people seemd to like. For those wh didn't play last time, a large game is broken up into several smaller ones. Each "mini-game" has its own lynch and during the night actions could affect others in different boats and there are random events that can merge and divide boats, take away and swap passengers etc. But this time it's in OUTER SPACE. Boats are planets and there are multiple Dawn of War factions. Would probably be the third and final Dawn of War game. Large game with multiple factions, however still requires activity from everyone and town keeps control.
Horsemen of the Apocalypse- I've been thinking of making a series of themed games, a titular Horseman at the theme of each one.
Death/Pestilence- A hospital in neutral lands during World War 1 faces an outbreak of the Spanish flu. Soldiers from respective sides of the war, doctors, nurses and patients alike are isolated and their own conflicts as well as the looming disease, personified by the horsemen of Pestilence, threaten them all.
Famine, set in 1930's Russia, War set in either in the Spanish Civil war or the Second Indochina war( the american one), and Conquest set in World war 2 on the Eastern Front.
Game of Thrones-inspired by hbo's recent adaptation of the Song of Ice and Fire series. Quite a good theme for a mafia with plenty of factions and intrigue. Would be interested to see how many people are familiar with the theme and want to see it doen, and am slightly concerned that a game could be kinda spoilery.