There's been a lot of discussion about maybe doing a Vietnam based game, but what about the Korean War? The time-scale over three years makes it much better for a two week turn, and to the best of my knowledge there are no other Korean war based strategy games in existence.
Scenarios could include the initial North Korean onslaught, the Busan pocket, the invasion at Incheon, the advance to the Yalu, right up to the armistice. The wide variety of different characters and nations who fought on both sides would make it interesting, it would also enable us to see early jet combat and things like Russian T-34s attacking American Shermans.
The engine would have to be similar to WW1, as the mountainous terrain wouldn't allow for a ACW or BOA style, and the war of attrition in the later years of the war would match well.
What do you think?