The Crush Is Real, 2.0
Next important event (perhaps a holiday or level 9000), repeat The Crush Is Real, so everybody can have a chance, even if they missed out! Also, let's get a little more creative...
I would suggest to add a blueprint of what their suggested level would look like! Imagine all the wonders and such levels... the opportunity to be a level designer for any game is just stunning, and one everyone would covet.
Keep the reason why candidates love CCS as well.
Also, I don't really think that the 18+ rule need be enforced (unless it's on Facebook, of course)
Hope this works!
UPDATE: Support the Candy Crush Championships and Crush is Real 2.0 here! https://community.king.com/en/candy-crush-saga/discussion/316806/contest-candy-crush-championships and https://community.king.com/en/candy-crush-saga/discussion/318284/the-crush-is-real-2-0 respectively.
Fascinated with the sweet, the supernatural and the supportive. Nothing can stop me. Change my mind.