Is it now a possibility that Plex would create a client for Xbox now that a Gold subscriptions is NOT required?
http://www.engadget.com/2014/05/13/xbox-live-gold-netflix-hulu/
was that holding them back? those have never been behind a paywall on the ps3 and yet there isn't a plex pp there either.
An XB1 app is being developed. Just not by the Plex team.
https://forums.plex.tv/index.php?/topic/104978-Plex-for-Xbox-One-is-a-Go%21
early 2021 clean-up: implemented
