The impact of the Buckingham re-development will have a very positive impact on the area. I'm not sure if it will reach to Aurora Hills, but the immediate area (Village East) will see an effect.
The "Old Buckinghame Square" had become a blight and needed to be torn down. It was, in my opinion, keeping people away from buying in the Village East neighborhood. Since Aurora Hills is a few miles away, it didn't have the negative impact there. Thus, the benefits will also be less.
Additionally, I thing the redevelopment of Fitzsimmons will have more of an impact for you. The number of jobs being created there, and students needing housing close, will increase demand for the Aurora Hills area.
Hopefully that helps, feel free to contact me if you have questions, and good luck with your home purchase.