I also think there would be a slight backlash against an AM at SDC at first, simply due to a local cultural repulsion against anything requiring exerting physical effort at a theme park. However, just like at DW, I'm sure it would become a hit as it is tried out. Since they've already got the concept for it and they apparently aren't pushing any other options around I'm sure we'll find out soon enough. Hopefully we get a smaller version with a few sides.
As far as the next coaster goes though, I think a G-fighter is off the table. As was mentioned before, an MM would be prohibitively expensive in the current light of things, has relatively low through-put, and isn't turning out to be quite as good in the long term as was hoped. A woodie at SDC, however, has everything going for it: cheap, reliable, family-friendly, and a sure hit with crowds. I think they'll come to this realization soon, but I don't expect them to build it anytime terribly soon.