It's not going away, as much as I might like to see it. There are just too many people who have given their lives to it and it is just human nature to never want to admit the whole thing was wrong to begin with.
That being said, there will no doubt be a lot of changes as the number of JWs and congregations declines over the next twenty to thirty years.
my opinions only:
I do expect elder and MS to be opened up to women
The 1914 doctrine will fade away eventually as it becomes more and more preposterous
The two class Christian (anointed vs great crowd) doctrine will have to go
The disfellowshipping practice will morph into something else, I don't know what, but it is unsustainable as it is.