Allegedly park staff are saying that IW is going to the scrapyard; corporate has deemed it to be un-salvageable. Given its relatively late closing, if we get a replacement in 2012 it will most likely be a copy of SFMM's Green Lantern: First Flight. Personally I would rather have to wait till 2013 for a much large coaster, potentially that DM we've been wanting for so long. But I think SFMM will probably go the first route, putting in a new thriller that's cheap and will get a quick ROI. If you want to read more of my in depth thoughts on this issue, check the SFGAm Future thread were I expounded a little bit more.
A Green Latern wouldn't be aweful, especially if they add another coaster in 2013 (wing rider for example). Is it possible to add a Zacspin in Carousel Plaza? Say, behind the Carousel with all the trees that's in between the unused train station and the path by the cotton candy stand. On a map it looks big enough, but probably not for a queue line and it might be on a hill which won't work. Unless they remove the cotton candy shop and make that whole area for a new attraction.