I just don't know how well a drop tower would fit right there. Sand Storm's queue isn't very big, so that would more than likely have to be expanded. And as hatetofly mentioned, I hope this new drop tower brings some much needed attention to the rest of Timbuktu.
This also concerns me on the fate of the Sand Storm. I truly hope it gets relocated. In Egypt perhaps? If it in Egypt, it could also keep it's name. Where as if it were moved to Congo, Stanleyville, or Nairobi, it'd probably have to get a name change(not like it's that big of a deal). With that said, a great flat ride like the Sand Storm deserves to be preserved.