Query https://community.spotify.com/t5/Live-Ideas/Queue-Queue-to-Next-or-Last/idi-p/120484 was sumbitted in 2012 and was updated in '18. Still no updates for this. There is a fault in playing playlist, it's not like a 'new feature'. I'm starting to listen the album - pressed 'play' button for album exactly and i want to listen second or another album after first will end up. It's absoletuly obvious feature. Now I can't plan my playlist and chill out, i should do it manually everytime first album ends. Headache.
Updated on 2020-08-14
As you mentioned, a similar Idea has also been suggested, and only one thread can exist per idea:
If possible, vote for it, and add a comment there, so it may be considered. Any update on the matter should be posted there.
For more info on how the Ideas Board works, click here. 🙂