The present GB arrangement doesn't have logevity with a closed anointed-class. Stop-gaps like reversing the 1925 "door is closed" policy will only go so far. Yes there will be younger "company men" who start partaking that won't be reviled and ridiculed and jeered, but the pool of leadership candidates will dry up.
An option is to open the GB to non-anointed. They flirted with this with the nethanim "helper" arrangement. The FDS 3.0 may allow for this. For example, there are many non-anointed in the writing department who are collectively working to provide "proper food at the proper time."
However, a problem with this is that you lose the esteem/allure of having leaders selected by God. The "laying on of hands" arrangement provides a way out. Whoever is anointed by the FDS is anointed vis a vis by God himself. Consider how the rank and file have never questioned who is appointed to the Governing Body. They accept this as some sort of myserious divine rite directed by Jehovah. I would imagine they would accept the "anointing" of members the same way.