I know it sounds crazy, but I do not doubt that this is possible in the future. Of course I feel that it would be wrong.
Some fans basically worship Elvis right now. He was a man. A great man....but a man. Elvis would be upset at the thought of this I do believe.
Facts are facts though....It took Christianity awhile to take hold. I'm pretty sure the gospels were written like 40yrs after Jesus died on the cross. It took a long time for Christianity to spread.
There is no way to know how Elvis will be viewed in 200 yrs if we are still here.