Even as a tightfisted so and so, I would pay good money for a Dynamic Campaign module for DCS. More so than many existing modules. It would allow me get so much more enjoyment out of the modules I already own.
My one and only experience with a DC comes from AV8 B harrier Assault back in the day. It was very simple but a lot of fun. For those who don't know the key features were that instead of playing a single pilot, you had a squadron of Harriers stationed on an aircraft carrier off the coast of East Timor. Your mission was to win the war in east timor. You set what sorties few, the mission types, the targets. And of course you were free to fly these missions as well. It was simple yet involved strategy and resource management. Get it wrong and you run out of Harriers. So there were also stakes. I think someone could keep it simple like this yet do something very deep with the building blocks of today's DCS.
Somebody please give everyone who likes more than just sandbox from single player a break and make version 1.0 of this module. Might as well make it a custom dc creator/editor while you're at it. Then just keep releasing upgrades improving, expanding and deepening it over the years. My money is ready. I'm sure I'm not the only one. Do your market research and I'm sure it will tell you the player base is large enough for this to be viable.