Not sure if I'll have time for this tbh, but if I made the commitment, I imagine he would just be a fiendishly witty man on the streets of...(say King's Landing) who is currently in the process of amassing power for himself in a slow, inexorable way
maybe kind of like a hash of Varys, Pycelle, and the high sparrow, who knows?
(also i write a lot more precisely in character, I just am a lazy bastard in ooc)