Pretty much this.
Diablo 3 needs fixes, that may involve changes to content. You want content updates play WoW.
Whats this post even supposed to mean?
When you talk about new content, you talk about something actually new being added to the game. In WoW's case, a new continent, raid, battleground, class/race or stuff like that would classify as new content, because they require new assets to be created.
Updates based on existing content aren't really adding content. All this represents is tweaks to stuff already in the game.
In D3 the amount of new content has been minimal:
New graphic for marquise gems
The brawling NPC
The room to summon uber portals
That's pretty much it. Most of the updates D3 has received have been tweaks to existing stuff, such as ubers, monster density changes, paragon levels, monster power and so on.
This isn't necessarily a bad thing if done properly. They can do a lot with small amounts of content by repurposing it in creative ways. Just take a look at PoE's endgame maps, for instance. They're pre-existing dungeons with a twist, by introducing several handicaps to make them more challenging. D2 resourced to this when they added ubers and synergies. In fact, this has been a rather popular practice in ARPGs for a long time. However, this relatively small amount of content becomes very apparent when the core is flawed, which is what happens with D3. People are bored because there's nothing to do other than farming stuff, because the game has a ridiculously high focus on gear in order to push AH usage, and virtually zero RPG elements.
In D2 people were making new characters all the time. It was exciting, and commitment played a huge role in D2's longevity. Unfortunately, the current development team mistakenly tagged commitment as a flaw, and stripped Diablo of one of it's crucial components: character development. It's no wonder people were bored after a few months of playing the game. There's literally no reason to make a new character unless you die in HC, because every character is just like every other of the same class, and the little you can customize (gear) has been monetized just to generate profits, so your character is basically as good as your wallet's size in many cases. It's the kind of outcome you can expect when you put inexperienced people at the head of a project they're not prepared to develop. They surely have their merits in MMO and RTS development as WoW and SC no doubt demonstrate, but they just don't understand ARPGs, and it shows a lot.