As you noted, for 2015 you would have problems for a GV even now at 8 1/2 months out except for SSR and Kidani savanna view. Be aware that, if prior years are an indication, by April 22, 7 months out from that Sunday this year, you may find those AKV GVs will also be missing multiple nights, and, though in 2013 SSR GV's were open, they were missing the Tuesday, Wednesday and Thurs of Thanksgivng week in 2014. In other words, your best shot for a GV is likely to either have points transferred to you or or for you to rent from another member, such as through David's, a GV reservation for that Sun to Thurs at the 11 months window. Finding someone to transfer the points will likely be more difficult than doing a rental such as through David's, and, though the possibility was mentioned above, I think it will be near impossible to find someone who will transfer points to you for the GV in exchange for you transfering points to them in a different use year.
In other words, if payinmg cash for a resrvation, or even for a possible transfer, is not something you are considering, then you are going to need a back-up plan to the GV concept unless you can get a GV with your points at your home resort 11 months out, and that back-up plan shpuld itself incude making the reservation for the rooms you need (e.g., two 2BRs or a 2BR and 1BR) for that Sun to Thurs at your home resort, because even those room sizes could be gone at most resorts by 7 months out for that time period.