The Great Fall 3?

I've got some ideas for The Great Fall 3. A lot of people are asking about the fork in the road, or specifically, where the Russians came from. I kind of want to write another Crusaders tale, but I'm interested in what people want. Let me know by mail, if you have an opinion.
One thing I will say, if you want another sequel to The Great Fall, a lot of your questions will be answered.  
The Great Fall 3 will go right back to the moment of Infection. There is one, unassuming, person who knows everything.
Or put another way, there is a certain girl who is the only sane person in the asylum.