I'd like to see a more detailed campaign on The Crusades, with all the Crusader Kingdoms, Principalities, and Counties. With all the intrigues, the power-struggles, the diverse crusader armies, with different rivaling arab families (Ayyubids, Fatimids, Seldchuks, etc.), the interfering Byzantine Empire, and unique (realistic) castle and city layouts (Jerusalem with the Tower of David, the Crac des Chevaliers). *droolsalloverhiskeyboard*

Oh I'd really love to see this...