Oxxxymiron the only reason I asked Ellendil to create a separate topic is because I have some information and ideas to share that might help solving the problem but is not related to the classic endpoints.
I saw your topic before, I still don’t have anything to contribute and I seriously doubt anyone can say anything helpful on that matter. Only a Blizzard developer can truly answer if an endpoint will be implemented or not.
Meanwhile you might wanna have a look at this topic since there is a mention for a future AH endpoint.