Oh man, I'm really interested to know! But I get wanting to keep a microfandom quiet. A show that covers that much time in a single season sounds really interesting to me, though.

(one of my fandoms is a non-Supernatural long-runner and I've also had the experience of seeing characters grow up and visibly age and like... it really IS reassuring? The female lead has changed a LOT over the years but if anything I think she looks more beautiful after more than a decade. Seeing the laugh lines develop on people is weirdly heartwarming.)