So looks like while the rest of Blizzard felt that having more stats and things of that nature was a bad idea, the D3 team decided to sneak in more customization for the next patch/season:
New Artifact: Kanai’s Cube
Those who played Diablo II might remember the Horadric Cube, a unique device which allowed you to combine items. Useful as it was, it was easily surpassed in power by the item from which it originated, Kanai’s Cube. In Patch 2.3.0, players will be able to discover this powerful ancient relic and utilize its incredible potential, including the ability to break down Legendary items and equip their special effects as passive skills (which are separate from your other passive skills), convert crafting materials from one type to another, and so much more.
On top of that, seems like they've gone and paid the artists to make some new stuff:
New Zone: Ruins of Sescheron
In Patch 2.3.0, the frozen wasteland that is the Ruins of Sescheron will open for exploration. Here you’ll face off against strange new enemies and perilous environmental hazards, all while unearthing new mysteries from the lore of the mighty Barbarians. Those brave enough to make it through in one piece will discover curious new points of interest, including the lost Tomb of King Kanai and his ultimate treasure—Kanai’s Cube.
http://us.battle.net/d3/en/blog/19802338/patch-230-ptr-preview-6-23-2015
I figured I'd give the PTR a try (because 2000% increased Legendary Item chances, why not), and... It actually doesn't suck. Breaking down the loot to add passives requires a bit of farm though, so I didn't get to it, but the new zone is actually pretty interesting, and it seems Blizz actually realized that HEY, adding cool shit like secrets behind seemingly solid walls was a good thing!
Overall, seems like the D3 team is actually getting their shit together bit by bit. It's still nowhere near the depth and variety of PoE(xile, obviously), but for what started as D3 vanilla trainwreck, this is actually getting pretty decent.