^^Really, you think a 2nd year of flat rides is a let down? You can nearly literally count the number of flat rides at SFMM on one hand. It's actually embarrassing. Most other parks have majority flat rides. And keep in mind, flats can eat away from the coaster lines. It's beneficial to all.
My first choice would be a troika... we don't have any in CA at all right now. My dream would be for them to put some sort of flat ride inside the lower dragon station, but I figure like the people mover tracks at Disney, it's probably beyond repair from years of neglect.
Anyone remember all the flats SFMM used to have back in the day? Tilt a whirl, Enterprise, bumper boats, Crazy Barrels, Tumble Drum, Jolly Monster, Swiss Twist/Bayern Curve, Condor, Eagle's Flight (2 paths!), Spin Out/Rotor, Looping Starship, Galaxi/Ferris wheel... all gone, and many replaced with literally nothing.