Well, he will certainly have one huge influence on who it will be. Not only is THE REV ANGUS McSTEAKHOUSE on the committee that will choose the next bishop of Rochester, but he is joined by two other members of his pre-Enlightenment congregation. I haven't checked out the view of women and gays that the other members of the committee possess, but my guess is that this will be a done deal. Poor old Kent is going to get another phobic, Bible worshipping idolator in charge.
The Church of England has never ditched patronage. It is far too easy for a few, aggressive people to get their own way in the election of bishops mainly because it is so easy for serving bishops to make sure their successor will be in their own image (a recent example of this being the replacement of Dow in Carlisle with Bishop Dow Lite). The vacancy in see committees are just quangos and, although they will pay lip service to the concept of listening to the people of the diocese, in practice, like in all walks of life, it is only a few of their number that have the integrity to put other people's views before their own.
I don't know what the answer is. I don't like the competitive element that is so much a part of TEC's, democratic election system (although it's a damn sight fairer than the English one). Perhaps the apostles had it right. Put the names of all possibles into a hat and draw one out. If the Church did a deal with one of the leading bookmakers we could even make some good money out of it. And, at least, it would make it possible for geographical regions to be rescued from an eternity of one churchmanship, whatever the existing ethos might be.