Hybrid level scaling - Where the enemies are a minimum level, but will also scale up to your level (within a specific range)? This is something I proposed before and would stand behind
If you're doing effort to make hybrid scaling, like, an enemy from lvl 12-14... I would say "why bother". Why put so much effort in something so small, so insignificant and something that wont at all resolve what people apparently think was wrong (it wasn't) in D:OS. Stick the lvl 12's in one dungeon and the 14's in another dungeon. Give players the choice, have more content.
Definitely my preference of developer time, more content rather than having them waste time like this. And then you could say "they can just add X HP/damage and stuff" but that's just as half-baked and not thought-out that 'full scaling' would do, and we already have ample proof of can be very very bad.
As a tiny green man once said.
"Do or do not."
No game ever benefits from adding half-baked sollutions for something, often making the 'cure' worse than the disease in the first place.
