I pulled a big chunk of the feature requests with the most votes. I grabbed 164. Of those 22 were marked as done. 13%. These are the top 50 that are still not done although some of them have a workaround, are in process, or are almost there.
Google home integration - 2460 votes
PLEXREADER: Comics, Books, PDFs - 2224 votes
Support for audiobooks - 1419 votes
Better Playlists (+Share Playlists) - 1409 votes
Multiple Cuts Of Movie - 1385 votes (I use local media assets for this)
Send server messages - 932 votes
Playback Speed - 779 votes
ID3 Tag support for ROBUST music library organization - 648 votes
Add support for AMDās Video Core Next encoding - 621 votes
Multiple epg sources, for those with multiple tuners - 605 votes
Alias instead of plex.tv usernames - 567 votes
Automatic subtitle synchronisation - 564 votes
TV Series DVD Special Features / Extras (Behind The Scenes, Interviews, Trailers etcā¦) - 516 votes (coming with new scanner)
PseudoTV - 472 votes
Control subtitles on a per-series basis - subtitles472 votes
Ipv6 support for myplex - 440 votes
Rename + Reorder Channels in LiveTV - 437 votes
HEIC/HEIF support in photo libraries (new photo format for iPhones) - 431 votes
Show names for audio tracks and subtitles - 421 votes (there in some views but not all)
āTandem Playbackā to several clients - 413 votes
Chromecast Live TV - 399 votes
Correctly identify & display Dolby Atmos, dts:X, and dts-HD MA audio tracks in Plex clients - 373 votes
Hardware Accelerated Decode (Nvidia) for Linux - 364 votes
Plex App for Nintendo Switch (And other Nintendo systems) - 363 votes
Default All Clients to Max Internet Streaming - 352 votes
āShare Movieā Link for People without MyPlex Accounts with optional expiration date - 331 votes
Full Trakt Integration - 327 votes
Buffer main movie during Pre-roll - 317 votes
Add TV Everywhere to Live TV Dvr - 311 votes
Bring internet radio stations into Plex - 284 votes
Option for semi-persistent automatic skip intro - 271 votes
Philips Hue Integration - 265 votes
Recommend server content (not just queued) - 253 votes
Integrate the direct (non FUSE, etc.) connection to storage providers from Plex Cloud into PMS - 250 votes
Alternate [external] Audio Tracks - 247 votes
Transcode to HEVC/x265 - 247 votes
Is Anyone at Plex looking at doing something like MoviesAnywhere.com? - 246 votes
Delete poster - 226 votes
Allow Plex media server to sleep/wake properly including DVR recordings - 222 votes
Skill for French - 221 votes
A more user friendly UI - 217 votes
Better internet streaming using multiple parallel connections (or threads). - 208 votes
Disable 4K Transcoding - 208 votes
Please enable āUse embedded tagsā in Photo libraries - 206 votes
Continuous Autoplay - 200 votes
Support Alternate Order / Flexible Seasons (TVDB) and Episode Groups (TMDB) - 99 votes
Lyrics always visible when song starts - 189 votes
Auto-delete watched episodes from ALL series (or as bulk action) - 188 votes
Force Pre-Roll Vdeos on remote users! - 184 votes
Apple Watch Client App Request - 182 votes
Some of those guys at the top have been around for a LONG time.
Google home integration - June 2018
PLEX reader pdfs - Jan 2013 (over 8 years)
Audio Books - Jan 2013 (over 8 years)
Better Playlists - Aug 2014
Send server messages - Nov 2012 (coming up on 8 and a half years)
When you have your top requests sitting in limbo for over EIGHT YEARS, it kind of makes the whole āvote for what you wantā thingie a joke. Audio book support has over 1,400 votes and all it would take is album level resume and we can do it. Thatās it. Prologue can do it but you canāt?