The ability to create Ink Notes, as in the old EV versions, should be brought back. The Ink notes should have options to add ruling and different color backgrounds.
I tried using the Insert Sketch function as a substitute. I made a mistake, accidentally deleted the sketch, couldn't undo, and couldn't revert to a reasonable snapshot. I got some notes back but lost about 1 hours of work. It appears that note snapshots are not taken frequently enough, and the undo function does not have much (if any) history.