It would be great if you also had more of a non-linear mode for content that is less structured and more suited to live events where anything can happen at any time.
For video meetings, podcasts/talk shows, etc. there is often content repeated between calls/presentations (theme song/intro, memes, sound effects etc) and also planned content from a topic list, but that content may be mentioned by anyone at anytime so it should be easy to trigger without too much scrolling.
Maybe it would look more like a sound effect board/stream deck/TV Mixer where there is a matrix of buttons to playback videos, add titles, show images, play sound effects, etc.
In the future, it would be awesome to have support for chroma key (green screen), data driven motion graphics (score board, live weather, live stock data, etc).
Basically, if you could dramatically simplify OBS, and it looks like you've already made some big steps in that direction, that would be highly valuable.