FYI, a poster on another thread says that they have just received their relocation notification letter from SoG for a mid-May arrival date. Notice included info on the expansion, including concept art. Apparently theming is to remain the same.
My Dad asked me to ask whether golf discounts would still be available to SoG guests after the relocation. I asked a SoG reservation agent last week, and she said she didn't know, but that they weren't even sure the golf courses (Palm and Magnolia) would remain open, since they are impacted by the expansion.
It is hard for me to believe WDW would close these two golf courses, particularly given that the Magnolia is used for the PGA tournament in October, but I'm just passing on this information.