Dear spotify programmers, please make this situation clear for your (premium) users, will the sync feature come to Android wear 2 or not? Don't hide yourselfs in this case but be honest. A lot of us are really happy with the app, but also a lot of us are runners who bought a watch in order to be capable to leave the phone @ home!
So after posting and researching and waiting, I finally pulled the trigger on a Polar M600.
I will pay for a Google Play Music sub to gain offline playback during my runs. I like Youtube Red anyway. I actually already recreated my Spotify running playlist in GPM. As an audiophile I cringe at the thought of using GP, but Spotify doesn't do HD files (yet) anyway, so ce la vie.
Based on recent rumours, I think Spotify is looking to get into the hardware game for some reason, which explains this ridiculous gap in functionality and their utter lack of response.
To everyone on this thread looking for offline playback on their Androud Wear watch, I'd recommend making the jump to Google Play Music or getting the Mighty Audio player. I'm disappointed, as are we all, but I think it'll be some time before they put a device out, if that's what they're doing...