When are we getting local files support for Connect?

[Renyygade]

6 months ago I left Spotify for Apple Music when they launched and was extremely pleased with the connectivity the service offered across all my devices. Today I decided I would hop back into the Spotify world to see what's changed during the half year I've been testing out various other music streaming services. I'm very disappointed to learn Spotify still doesn't allow for local files support on Spotify Connect, so when are we getting it? I've really craved Spotify lately, but I don't know if I can deal with not having all my music in one place.

Also, does it count as connect if I'm playing through Bluetooth in my car? Local files worked there before so if it doesn't that would be shocking.