TLDR: Nothing exciting
Longer version:
I just saw the PTR 2.1 Patch notes after someone pointed out it was inserted towards the end of the PTR 2.1 What You Need to Know article from the Campfire Notes.
Nothing exciting stood out for me. I admit I was more bias towards seeing the SB nerfs and seeing any of Sorc improvements. The SB nerfs are good but nothing exciting.
It felt the updates were geared towards Torment 1. If you consider the changes in the context of T1, they look really acceptable. But once you think of T4 and Pit 90s, nothing looks remarkable.
In my previously deleted post (because I mentioned the game that must not be named) I said the S7 powers are good but feels like more a rehash of S1 and S2. So I think you can skip S7 and go straight to S8 and you should be fine.
Now after seeing the patch notes, it makes S7 more interesting than the base game and VoH itself. Basically what I am saying here is it feels the only meaningful patch notes to 2.1 is nerfing SB, the rest doesnât make anything exciting.