Personally, I think it will be a LONG time before we hear the Society fess up, if ever. One of the Society's favorite tactics against such issues is to 'keep quiet long enough', hoping it will go away. They did just that after 1975, but eventually had to make a half-baked apology in 1979, after thousands of Witnesses had left.
I predict that the Society will publish an article, make an apology, or resign as an NGO, but ONLY if it causes serious dissention in the ranks similar to the 1975 fiasco.
Remember, the Society is motivated by two main things: membership statistics and profits. The only time they take action/revise 'old light' is when one of those two motives is threatened.