Who knows what the church, in it's efforts to retain it's power, will accept in 10 - 20 years time. Who would have thought 20 years ago that they would accept women or gay clergy?
As for accepting Camilla, while this forum seems to be extremely pro camilla, this is not neccessarily true of the general population. There are a lot of people who were crazy about Diana and are still not thrilled with Camilla. When they were getting engaged, there was a site where about 90% of the posters were saying if Charles and Camilla waned to get married, he should step down from the line of succession.
The UK population has become more accepting of Camilla and some of the sites and their polls were the ones that you could vote dozens of times. The Royalist is a pro Diana site, if they can write something derogatory about Camilla, they will. The majority of the population do not go onto sites like this in the first place and most of the polls could not represent the entire population if they are only asking, as they did recently, 1005 people.
I was involved in a poll a short time ago (first one ever) and it asked me if my opinion about Camilla had changed since the wedding. I answered no, as my opinion has not changed, I always thought she was perfect for the country and for Charles. Then look at the interpretation they probably used and it looks as if I don't like her.