I agree that missions are boring, because its the same thing every day. But for reward of 10 tokens, its not that bad. If you are not paying any money to the game, every token is welcomed.
But honestly, I think that your suggestions are too hard. And the most important thing, they would take a lot time to complete. Some of us dont have that time, so it will only make it harder.
I hope you understand me, some of us have a life beside this game, jobs, schools, etc..
Anyway, I support any change that will help the game to become better.