I think its time now to remove some of the restrictions of video resolution for output.
I have to create some videos for shelf edge display and the video resolution is 1920 x 87. Davinci Resolution will only allow 256 as the smallest resolution in any one direction so I'm limited to 1920 x 256 output. There are so many devices with video capabilities now that do not use standard video output formats.
I 'd assume the supported format depends on the media player thats driving it ... heres a link to a shelf display panel (1920 x158) that specifies an Android based media player that supports: Video (MPEG-2, GOOGLE VP8, H.263, MOTION JPEG), Audio (MPEG Audio, WAV Audio, OGG Audio, FLAC Audio, MIDI Audio), Image (JPG, GIF, BMP, PNG)
Let's have a return to the glory days, when press releases for new versions included text like "...with over 300 new features and improvements that professional editors and colorists have asked for."