bluebeat1313
Here is example. I have a friend. She has great voice. She is 150 miles away. We meet 2-3 times a year. If we are not distracted by things that life throws at us, we try to record something at my place. She does not do record on her own and she does not have time to learn DAW from scratch. If we have same DAW it would make things much easier as I can explain basic stuff to her. If we can share files efficient, user friendly way, through DAW plugin or some core feature it would make things even smoother. In this scenario, she would open my file with instrumentals and only have to remember 5-10 steps in Cakewalk to record her vocal takes and then share that project with me.
Very interesting my friend:
I have the same issue but I do not think collaborative software will solve my problems, at least not between me and a non-studio owner, or someone with no studio access.
Here is my story.
I have been engineering music all my life, I hate singing. for me it's like going to the dentist.
So I decided that I will write produce and Engineer but would rather other people sing my songs.
Based on what you just wrote, it could solve all of my issues when it comes to collaboration with singers but here is my problem. I recently met a girl on Bandlab, her voice blows me away but she knows nothing about professional recording, in fact, the song she posted was recorded on her phone and uploaded to Bandlab.
I could send her audio files assuming there was a streamline way to collaborate. This big issue is how do I get quality recordings of her? For example: I use a Neumann U87 and I would prefer she sing into that but regardless of software, she will need to go to a professional studio to record.
The best I can do is book her at a professional studio and do a voice over. This works but is expensive and not very fluent.
I think any collaborative software will require a hardware counterpart.
It makes no sense for me to record on an SSL Console and then send the files for a singer to sing in her phone or in her dinning room with the dog barking in the yard.

But you are right, collaboration between two studio owners will greatly benefit from the existence of collaborative tools.