I will be happy if they pause on coasters a bit and focus on infrastructure and flats. There's a rumored upgraded main gate entrance and parking (both sorely needed), and there is space for flats that just aren't being used right now. Other SF parks have advertised flat ride packages, so it can be done. We just returned from SFOT and SFFT, and nearly every other SF park I can think of (SFGA, SFGrAd, SFOG, SFNE, SFStL, and SFDL) has more flat rides than SFMM--it's pretty embarrassing.
I totally think an Endeavor would fit into the old Tidal Wave space pretty easily, and could easily be a "Catwoman Whip". Although being somewhat close to the Boardwalk area, if they had guts, they could theme it to an old SFMM ride, Circus Wheel. It'll never happen, but it is fun to think of.
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