We had this problem a long time ago. When we reached out to CG/EA for a solution, there was really nothing that they could do for us. The way we fixed it was by giving everyone a heads up that we started a new guild. We got many of the people over to the new guild, but certainly lost some folks. That said, it was the best decision we made. Our guild is fairly strong now, very active, and solid leadership. And we set up the officer structure in such a way that is unlikely we would be without some sort of leadership at any given time.
I am sure that is not the answer you are looking for, but that was my experience.