So this isn’t actually how it works in Diablo IV. You get stronger, but you don’t get (access) to better gear. You can farm 4GA’s in Torment I just as good as in Torment IV and perhaps even better, cause you kill a whole lot faster. I can’t even tell the difference between Torment I and II in terms of droprate. There’s also nothing exclusive to get from anywhere and a lot of the times the dropped affixes are crap even on 2+GA’s. Of the >100 Ancestrals I’ve bricked (got the achievement), there’s tons with 75% X resist, 15 Life per 5 second and 2GA’s with both of that GA’d.
If I make it to Torment 2, I want access to better gear, stop randomizing the cookie cutter template and make some items that have thought behind them. Ancestral aspects should be of 17/21 or better.
Unique aspects should match the power of the other rolls. So a 3GA + 95 (90-100) INT, should have an aspect at (3 * min(100, 150) + (5/10*100)) / 4 = 87.5%.
Guarantee that a weekly world boss cache contains a 2GA in Torment II, 3GA in Torment III and 4GA in Torment IV.
These are the simple things you can do already with what’s there. But really, tiered access to zones that drop exclusive gear, that would really support the get stronger, get better gear loop.