@PinkDot, I think your idea deserves a new thread. There already were projects like this - for sure you will find a few or more people here being interested.
I think we can set contests aside for a moment or make one, but shorter. Year-long contest gave us 24 missions. That's good, because it's a lot, yes. On the other hand, there were less releases during that one year period.
I generally like ideas to create things on collaborative basis. While PinkDot's idea sounds to me like a well known idea of team-made campaign (or mission), I would suggest to try something more independent than team-leader managed projects derived from big companies. There is nothing bad about it, but if you want a larger group of people to participate, you will face organizational problems, figuring out everybody has a real life, plus some of them already have a job and they are not interested in a job-fashioned activities. You will need to design a flexible style of organization or you will end up with a group of a few people. Maybe the solution is simple and you just divide the project in parts and everyone is doing their own part simultaneously. While one can easily achieve it with level building itself, still I think such initiative will require a full-time effort or really strong organizational rules when it comes to combine everything with a story, place objectives or other aspects of general gameplay.
What I am trying to say is, if we decide to do something different than a classic contest, we should decide on something more decentralized and less flow-based. I don't know yet what it should be. I have a few ideas. Everybody, feel free to brainstorm.
How about this one: A megaproject of a city-themed megamission, which might sound as a nightmare to a city theme haters but has a potential to be an epic product of collaborative dromeding between independent taffers.
Rule: Everyone publish your own town house made in DromEd 2 with stock resources and derivs only.
Optional: you can create the interior of the building, too.
Bonus: you can make other buildings like museum, hotel, police station etc.
Bonus: you are not limited to submitting one building only.
Important: ROLES. We need at least two people with following roles:
City Planner: A guy designing the city map and selling land to interested taffers, so that they can build their dromed architecture there.
City Builder: A guy loading multibrushes submitted by participants and joining them together in one city, according to rules set by a city planner. The city builder should be allowed to glue everything with city walls, street vertical design, decorations and other details making it possible to receive something that resembles a city in a final product.
If you ask me, you can either join these two roles into one person or split the roles to quarters if we want a larger city.
Mission itself objectives: Loot objectives only