Thank you very much, this is more than I expected: a brand new version of your project!
Regarding the ambient animated wind turbines, I think it's possible to do through SODE. I already use windsocks on my custom sceneries, where the socks turn into the current wind and even show the actual wind strength by being less or more filled with wind. So I think it's just a matter of modelling and configuring it according to SODE. But then it might not be possible to implement it into your scenery, since it would need native fsx/p3d animated objects, that react to the environment.
I actually would like to get all the windsocks for Sweden, where I live (and for Hungary, my home country :)), all with the above mentioned ambient animated turbines. I have seen that your scenery also contains Swedish ones, but probably not all (here we also have hundreds of them now). Can I ask from where did you get the accurate positions (GPS coordinates) for all the turbines? It seems to me that these data are usually not for free or at least not public. Other way is to look up all the sites on google earth, but that sounds very tedious