I got to thinking about this and for me anyway, they would have to come clean on at least the following things:
An honest retraction must be made on ALL the ridiculous chronology (of course including the false prophecies). By this I mean, stop this psuedo numerology stuff of adding up this or that date, adding on X many years, etc. and then coming up with "end of the Gentile times", "reign of Christ", etc. Admit that a lot of this got copied from previously flawed logic from the Adventists in the 19th century, and come clean on the fact that Russel himself was a pretty whacked out pyramid chronologist. I think the friends deserve the (real) truth that NONE of these dates was ever based on any kind of logic at all, let alone inspiration. HINT - do like R. Franz did and check out the historical basis of even your starting point (as if the tortured logic to follow would ever work if you HAD the right starting point!).
Second, give up on trying to convince everybody that you have divine inspiration. The facts are that the society (GB or whatever) has had to CHANGE THEIR STORY too many times for this to hold water at all. This would lay the basis to let go of a lot of really silly beliefs...HINT - remember that at the time Rutherford thought up the [great crowd] you were building a house in SoCal for Daniel and the other men of old! Isn't it a little arrogant to think YOU are of the "144000" but not most of the historical bible writers?
Third, quit giving out "divine direction" on things that are up to individual conscience. Lets face it, smoking may be bad for your health, but it is not "demonism", or hard drugs, nor is it addressed in the scripture. Neither is the idea that vaccinication is wrong, nor is the concept of blood transfusion as a medical procedure. Further, as I see it, there is not much said on a christians relation to the government beyond having decent respect for proper laws and using your own good sense. HINT - remember how you guys wrote that people who went to prison over the draft just did it out of their own conscience and not because you told them to? That is a lie, but maybe you SHOULD have left it up to their conscience.
There are certainly many more items worth a mention, but aren't just these three such a heavy burden that WT will almost certainly never get them through the gate?
Just my random thoughts on what it might take to get this org back on track...
James