I just don't think it's possible for the Borg to drop the nonsensical 1914 doctrine,,,without the Borg collapsing in on itself.
Likely the Borg will have to 'fizzle' it out,,,fade it out mention it less and less until it's more or less forgotten about.
You know how the Borg uses manipulation and repetition to brainwash people by saying words and phrases over and over for it to stick in peoples minds. But just in reverse, by saying it less and less until it's forgotten about. The Borg thinks the vast majority of it's sheeple are stupid. Well,,,guess again,,,,they're not, that''s why the Borg has to scare it's members from researching.