I'm not sure it's possible to make entirely new one's if that's what you mean, Blaze. As for new missions just in general like the battleship missions, I'm not sure. I don't know how to code those.
But, we're getting off subject again.
All in all, the points are that about 75% to 25% believe that it takes far too long to earn money on the server. Many want trading to be more fun and earn a little bit more cash than what it does currently (80 mil per hour instead of 40 mil per hour and with a dynamic economy or one that uses similar software as the mining mod.)