Here are some things I'd like the next LTS to have:
1) Caja - stable and robust; at present it grays out when attempting to display a directory with 1000s of items, or if a network I/O is occurring (I use PCManFM for any major file operations, but even it runs slow on 17.1)
2) Eye of Mate - stable and robust; crashes all the time from large image files, not super large, in the ball park of 5-10 Mbs
3) Cron - I have been running cloud backups manually because Cron does not work, from 16.04 onwards; please do not release without a properly tested Cron
4) Dual Audio - can Mate remember my audio settings for me? I have an external audio device in addition to the onboard one, but I cannot get Pulse to remember my settings between reboots; it is a crapshoot whether it will recognize the device correctly and configure it as before (believe me, I googled and tinkered for days before I gave up) - when I have it manually configured right, it works perfectly, but I want to tell it, 'Save Settings' and be done with it
5) Samba - can Mate mount my Samba shares for me? I have to do it manually from CLI every time I reboot (I have tried tinkering with fstab but haven't gotten it to work - password perhaps?)
All of these things have been working in Windows for a very long time, and they don't sound to me like difficult things to do technically, but I could be wrong about that. You have to understand, dumb ass users like me aren't too impressed when you say, "Oh, that's easy, just open a terminal and type in blah blah blah" --- are you kidding me? You should NEVER tell users to open a terminal and type stuff in: that is not the mission of a desktop GUI.
I am comfortable with the CLI. I don't mind occasional CLI use to install and configure something, but not for everyday stuff. I have a whole list of commands saved in a text file, for daily copy and paste convenience---thank goodness the terminal takes clipboard input!---but I want very much to STOP doing that. PLEASE liberate me from the CLI. I'll take the permanent betaware feeling of the Linux desktop as a trade off for file system strength and faster speed generally, but daily use of CLI is too much.
I am very happy to hear no new features are being added to 18.04 in the interest of getting it stable. Very happy. Work hard at it, fellas, as if your bread and butter depended on it---tough thing to fake, but there it is.
Thanks again for everything, and good luck!