There will if I ever decide to run. (proud Episcopalian here)
But in all seriousness, probably at some point. The only thing that may become an issue in the future is the fact that the image of the Episcopal church has shifted from blue blood aristocrats to one of staunchly progressive Christians. A Republican Episcopalian running in the next decade may be asked whether he or she agrees with the Church's pro gay stance. If they say yes, it might turn off some of his or her supporters.
So I'm betting that our next Episcopal president will more likely be a Democrat.
How about another Catholic president? We've had a 50 year dry spell.
Well, a Catholic is pretty likely for 2016.(If Obama wins).