Ok, this is without really looking at it so maybe it has these.

1. identifiable non-global blocks (so not these: https://github.com/WordPress/gutenberg/issues/2081) because I want to maybe use postmeta with a block? I don’t know, I have this vague idea that I’m too lazy to articulate atm. ok this wasn’t bad, I’ve done this.
2. the ability to limit blocks shown
3. the ability to make templates which need to be filled in so the author has to stick to the blocks in the editor and can’t add or remove or whatever

These are mine. You might have different ones.  ☺️

edit (same day, a few hours later): Look at this for numbers 2 and 3 in the list! Whooo!