From the Oregon ConSim Games website:
"1914: Offensive à outrance, The Western Front in WWI™ (translation: Offensive to excess) is a comprehensively researched brigade/division level model of the battles fought in Belgium, France, and Germany from August through mid-November of 1914. The game system employed will be a derivation (due to evolution) of the system used in 1914: Twilight in the East. The game includes four historical scenarios including: the Battle of Mülhausen, the Battle of the Marne, and the Grand Campaign Game (×2). The Grand Campaign scenario models the entire Western Front from the English Channel to the Swiss border; from the Siege of Liege to the Battle of Ypres."
This game is currently in development and publication date has been announced.