Will 2.2 levels bring difficulties we haven’t seen?

In a way we've already had maximum difficulty via levels that push the limits of what's humanly possible to complete, but this difficulty will definitely be expressed in new ways in 2.2; at least I'm hopeful that the new gameplay features will diversify extremes and make them a little more interesting or (with less difficult extremes) a little more accessible to people without the absolute best skills or equipment.

I'm mostly wondering about how swing will be used tbh, because levels that will be difficult due to the arrow triggers, reverse triggers, etc might mostly be like this due to how tough they are to sight-read, not because of how much technical skill is involved (even though timing is obviously important); if 2.1 already had these triggers, they could make current extremes harder, sure, but the actual gameplay of those levels isn't really affected. Hard to figure out what I really wanna say here lol but I hope this kinda provides an idea.