You're welcome!
And... sorta? The enemy shouldn't respawn indefinitely, but there are a bunch of fights available in the Stebbing Estate that you can do if you want to grind, but there's a finite number of them. I'll have to look into that.
To answer the question, no, enemies don't dynamically scale. They have set stats that are the same regardless of when you fight them. I did toy around with some "respawning" or "upgrading" enemies in the Deep Wilds, where an enemy would respawn with tougher enemies (or "upgrade" if you never fought that mob the first time), but it caused a bunch of issues so the idea got scrapped and only one mob actually does that. I might revisit it after I've finished the story and am working on the post-game now that I know more about how to use the engine, though.