Ok - my thoughts. This game got a little boring. Ok, a lot boring. There wasn't much that we could do to influence matters and there wasn't a lot of game play for us either. My suggestion would be that (if we want to), we play this as a OOC, two land masses and our PA is on the other land mass. This would mean that we couldn't give or get military help in the short term but we could help direct wars (start them, direct which cities to attack, etc). We could obviously select the tech path.
In the mean time - we would have to deal with our own neighbours and the issues they would bring to us (wars, conflict, etc). Our knowledge of all leaders would help balance out the additional tech cost that being in a PA brings.
The aim would be for us to get our PA to wipe out the other leaders on his island and then to help us wipe our leaders out - a potentially long drawn out modern war as there would be no easy way for us to limit their (the leaders on our land mass) expansion, tech rate or arms build up.
I think this game might be more interesting as we would have to play it on two fronts - directing our PA from a distance (and looking at the AI-silliness) while keeping our own head above water (militarily).
Rome might be a good PA for us. I would also put nut cases (Monty, Boudica) on our island as well as leaders who will run away with the tech (Mansa, Pacal).