I think it may form part of the metadata revisions coming with 1.3. See the posts by Mike in this related thread. If it is a 1.3 thing then that may mean a longer wait for implementation than the usual bugfix cycle.
I confess I haven’t been paying a great deal of attention to metadata changes. It may be that @Carl or @Ludwig have seen mention of proposed changes to Album Artist - Various Artists references in Tracks, History etc. I’ve got a feeling in my waters that there was another thread about it, but can’t find it now.