A quick search through old topics tells me that this concept has been done before and been discussed before, however the most recent topic is about a month old and I did not wish to resurrect an old topic (typically frowned upon on most boards). I have moderate experience with the Dresden RPG, I have never GM'ed but I have played enough to be confident with the rules and now want to make a more conflicted character, my first one was a Changling whose sole goal was essentially to survive, he was not beholden to anyone. I have decided on a Knight of the Fairy Court but we already had a Summer Knight (from a previous campaign) in the city and most other characters hated the Winter Court, so a Winter Knight was basically out. I then decided on attempting to make an Autumn Knight and here is where I stand right now.
I gave him Aseelie (liked the name more then Adseelie, to each his own I guess) magic which consists of: Wildness, Decay, Growth, Hunting, and Air. I took aspects from Summer and Winter as you can see and I feel these embodies Fall fairly well. I liked the idea of Fall and Spring being the more transitional of the four Courts but I wasn't fond of the idea that the two were wiped out and now in hiding. I decided to put a twist on it that yes, they were wiped out, but they are by no means hiding. Just like how scientists are discovering how the Earth may be going through "seasons" spanning millions of years (polarity shifting, average temperature rising and falling), so did the four courts. Whenever the Earth began too shift, the Autumn and Spring courts rose in power and every time the Earth stabilized the Summer and Winter rose to power. Now with the talk of global warming (not trying to spark a political/ecological debate) I'm thinking that maybe it's time for the Spring and Autumn Courts to be gaining power again and cast down the Summer and Winter Courts. Whether these transitions are peaceful (the fae recognize it's part of a cycle and accept it) or violent (the courts try desperately to fight off the steady advance of Mother Nature) I haven't decided.
Anywho my character is an Autumn Knight (in out campaigns there are more than one Knight per court as to not limit players wanting to create them) sent to check on the Winter Court as (whoever is the head of Autumn Court) suspects them of attempting to harness some powerful magic to stop the advance of said nature and maintain power, perhaps hopefully allowing Summer to fade so they are uncontested.
I apologize for the long post and if I made any grave errors concerning the Dresden-verse I apologize, like I said I have only moderate experience. I may have to drastically change the story of the Autumn court if my GM doesn't like the whole shift in power thing but I would like some feedback/suggestions from the much more experienced and seasoned folks here on the forums, both about the balance of power thing and my picks for the Autumn's Sponsored Magic in general.