The free flight aspects adds a lot of unpredictability and the paths gives the player something to recognize.
Yeah it's just another option. It can transition from free flight to a fixed waypoint path, from one waypoint path straight into a different one, or just keep looping around the same path. I have a couple of other waypath mode too. Choices
Do you have a specific game type you're thinking of where this is most suitable.
Scrolling shooter perhaps ?
Yes it's certainly something I'll be needing for a few future projects I have which would be vertical scrollers.
More immediately though 1982 is full of enemy styles from the early 80's so this would be perfect for getting proper Galaxian style swooping enemies in there among others. (they currently fly using random looping patterns)
And the next version of mono would have (currently) 10 different themed levels each with different enemy types. So for example in the "square" level the backgound would be filled in using square blobs, the background distortions would be based on squares & the enemies would move using square waypoint paths. At least that's my current way of thinking.