I’m hoping it doesn’t do the opposite
By the time the 72/73 boxed set is released, a huge hunk of these "Proposed Brother Bonus Tracks" will have been released.
I don't think any of this will hurt potential future boxes.
The question will become what and how will archival sets be formulated for post-1973 material? Will we continue to get somewhat album-themed/album-centric sets? Or will they do a sort of "Bedroom Tapes" type of set to present the 1974-1977-ish material?
Either way, if more archival sets come our way, I think most of these tracks will see release. With the exception of "Lazy Lizzie" perhaps, for obvious reasons. And perhaps we won't see those exact same sort of stripped-down, "underdub" mixes of "Love You" material; alternates of that sort can be presented in a number of ways.