Concern for money is important but not because they are worried about their personal welfare. They want money so they can keep doing what they sincerely believe is "God's Work" of saving lives. I would have to believe that their biggest concern is the large number of young people who are thrown out into the world too quickly due to "sins of youth". They aren't going to change the harsh treatment of disfellowshipped people but they are probably going to institute a program of really helping young fornicators, smokers & potheads deal with their problems. Disfellowshipping will be the last resort and reserved for predatory behavior where an individual is using the "brotherhood" for victims.
Back in the 1950's and 1960's they never disfellowshipped for things like necking and petting. If you punish petting with disfellowshipping and a young couple feel they are going to get disfellowshipped for those things they will just say Hell, If I'm going to get disfellowshipped I might as well have sexual intercourse to make it worth while.
If you are a creative person with a strong exploratory urge you're going to get into some kind of trouble. If you throw these creative types out you end up with the squarehead misfits that have a low EQ (emotional quotient) who tend to be antisocial. They become the next elders. Good bye to that.
It used to be that if you shunned someone they would come back for association with friends and family. If you disfellowship too many you just create an exciting community of x-jw peers. Young people would rather be with their friends than family anyhow. The internet also fills that void.
The argument will be since disfellowshipping is the equivalent of stoning you don't want to stone people at the drop of a hat. It will be reserved for really serious cases. There will have to be careful reviews of the actions of a committee. There will have to be guidelines for assisting people who may be bi-polar or severely depressed to avoid suicide. Maybe there will be obligatory meetings where groups of young people can get together and talk about how they are handling their problems. Maybe there will be the equivalent of AA for some who are abusing substances.
Right now you have a lot of parents who struggle with the urge to love and help their disfellowshipped children.