Some interesting stuff that won't be figured out until later, but the Tawhoa's buff combined with fortitude changes could make slamming feel much, much better. What's interesting is they did 0 to change attribute stacking builds EXCEPT Omni. Brutus/Int Wands/Dex Claws/Hollow Palm are all still omega powerful. They are of course missing the Sentinel boots which were something like 40% more dps straight up, but if that's a one-league only thing that's fine. I could definitely see a Brutus Slammer being pretty good this league.
The reason they pushed more suppression to the right side and off items was because getting 100% suppression from 4 pieces of gear and some minor investment + 50% or more spell block with glancing blows meant that you were blocking almost all spells for 20% of the damage, then taking half of that. That was the ridiculous part. Now it's very unlikely for glancing as well as max suppression, but people can definitely still do it. Defiance banner got nerfed, but the reduced crit buff part is actually really nice to try and get uncrittable without major investment. Molten Shell still untouched and the only nerf to it is essentially the mana reservation mastery nerf and defiance nerf. But now with arctic armor and the new phys as ele craft on chest you can do some big fucking phys mitigation without having to just stack armor to 100k.
Sunder looks very viable and some weird stuff like Shock Nova and Reave maybe be pretty big when some one tries and fuck with it. Minions are a ??? except for skelly mages/skellies in general getting fucked pretty hard, which was fine.
I'm guessing there's going to be some new affixes in Lake a la Betrayal/Synth/Sentinel that may give us some of the power we're losing with these nerfs. But we won't know until the livestream and the following datamine.