Guys blood is off the table. Seriously.
They already changed the policy in the back room, to make sure nobody is shunned for it, but it is still enforceable (just see the story of Daniel 1555 here).
I think the resulting purge would be catostrophic. Legally and otherwise, it simply could not be explained away. Blood.......not happening.
Perhaps changing the laws regarding family members and disfellowshipped ones. Now THAT I see happening. Its bad press, nobody gets it, it is responsible for some of the weirest strangest things being followed (that 55 year old man was disfellowshipped when he was 15 so I can't talk to him at his brothers funeral, yadda yadda).
I stand by the removal of the magazine name Watchtower in favor of JW.org with a new header, and/or changing in how shunning is carried out within families. Maybe not even those.
I am pretty sure if it was common knowledge among CO's, we would have already gotten wind of it. Haha.