New Personal story Rising Flames.
Leyline does come in handy, but not required anywhere that I’ve seen. Updraft for some of the POIs is needed. Bouncing mushrooms you will want, but the main way to get around there is the new mastery that was added with it (you can hold spacebar while midair to deploy glider). Thats for the map itself, for the story think its really just the new thermal vent mastery that you will need for sure to get to an area I don’t think you can get to without it (at least I wasn’t able to find a way to get there without it).
I was able to Glide everywhere, with some effort and lots of climbing :P