One function that I would like to see one day is the track family system. For example in audiovisual, if we define the families “Directs”, “Effects”, “Ambiances”, “Musics” etc, and we assign all the tracks and groups corresponding to the good families, that would allow that if we sends all the tracks in the same FX track (reverb for example), it comes out automatically in good stems for writing, without having to duplicate the FX reverb track 4 times with hazardous links. This would require that the FX or Groups tracks can independently process signals from different families.
For me it would be a huge advantage for audiovisual, cinema.
I think that in music too it would have many advantages.