I'd kind of rather see them just spend this year's money to rehab a bunch of rides. Some of the older ones are looking pretty sad.
-Make Furry of the Nile a wet ride again, revamp theming
-Fix ThunderHawk (water & all).
-Fix Autobahn
-Revamp/fix Cyclone Sam's effects/building/theme
-Give Boomerang a proper station/queue (althoughth it hardly ever has a line) & repaint
-Repaint Mamba
Come to think of it, the theaters look pretty ran down as well.
Heck, they could even upgrade some rides with that money and advertise them as semi-new (not unlike what Six Flags did with Bizzaro). Add the fabled tunnel to Mamba, upgrade Detonator to reach the top of it's towers (or convert one side to a drop tower!), add some new waterfalls/rapids/surprises to Nile, and change up Viking Voyager's path a bit (and of course add nitros to the Taxi's), then throw together some ad campaign about how the park has been "super charged" or something, change the name of a few rides if that helps.
To me, that might appeal more to families than a ride like Windseeker (which I think you have to be pretty tall to ride, right?), which SFSTL basically already has. I know there's not a ton of ROI in remodeling, but the park seems to be so caught up in the Patriots and the Prowlers the past few years that they've let parts of the rest of the park get a little dusty.