To get the ball rolling, here's Adam's:
With the Bishop of Atlanta defeated, and the City coming to a point of near-peace, comparatively speaking, the Castellan found himself, once again, retreating into his studies as often as possible, his duties to the Ordo and to the City still kept to, but perhaps not with the same fervor as when the town was in more immediate danger. At first, at least.
The changes came slowly. As his knowledge of the Coils and other magics increased, he began to slip away a little at a time. While still seen, he started to take on a slight haziness, like he was as much an illusion as physically present, a figment of the mind. Then, as more time went on, his mind seemed continually split in focus, as if nearly always focusing on two things at once; for that matter, he never seemed to sleep anymore, either, though few would pick up on that.
Eventually, he seemed to become something else entirely. Upon being named Kogaion of the city, at the former's demand, he ceased physically appearing altogether (or perhaps once he changed, he was named, it's hard to say what came first). Sure, he did his duty, catalogued the nests and the Ordo's other resources, and guided those to them that needed to, but never in a direct, physical manner anymore. He was seen from then on only in visions and dreams, those 'speaking' to him always certain it's him, but never able to contact him of their own accord (at least, none outside of his former bloodline).
The local Fae, of course, knew of him too; how could they not? To those that already knew him, he was a mystery, none entirely sure how he managed to blend so fully with the Skein without a direct connection to the Wyrd of his own. To the freehold at large, he took on the role of a phantom protector, here and there, appearing within nightmares and the workings of incubi (and worse) to bring control back to the minds of the changelings so infected, and as the years passed, he became more of a legend than the known vampire he once was.
So, his influence on the city remains, perhaps even more powerfully, if at an odd distance compared to what it used to be. It's perhaps not the transcendence most within the Ordo Dracul speak of, but few would argue that it's a potent, noteworthy transformation nonetheless.