Well, here are some things they said were going to be in the new content:
Matchmaking - Co-op and PvP | No co-op matchmaking
New Enemies like the Abyss Guard | We saw pictures about this guy but never appeared
New areas like Oolacile Tomb or Old Ruins | No areas named like that, though they might have renamed the Tomb to Township, but I really believe this is not true, because Oolacile Township does not have any Tomb-like feeling, and the Chasm of The Abyss is another thing.
Also I'm the only that feels that the new content is too short? In terms of gameplay I mean. There are just 3 bosses, and an extra boss optional (Kalameet). And Artorias is almost hugging Kalameet in terms of distance. Also the Royal Forest is completely empty, only a thousand enemies to bother you, then what? I explored it all already, it's boring to do, there are just some souls (not even good ones), the set of the Guardian, and one Elizabeth's Mushroom. That's it. I feel like the only true place is the Oolacile Township and the Chasm of The Abyss, so what? 2 areas?
Now the Sanctuary Guardian with good weapons can be beated in no time. Artorias may take you some time because of it's moves, but it's a medium boss. Now Manus may be a bit difficult, okay. Well, that's it. You finished the content.
Also no new miracles? Just one pyromancy? I'm ok with sorceries though, but I believe they should added at least 1 int based weapon.
If you already completed the new content and you're experienced in DkS, think about it for a second, it too short. Kalameet it's cool yeah, but he is not even in a new area. He in the Royal Forest, a transition place from Oolacile Sanctuary to Oolacile Township (with Artorias in the middle). Do you see what I see? It's all too close to each thing, all too short.
Don't get me wrong, I like the new content, but I think that they made it sound like if it were going to be bigger than this, I wanted it to be bigger than this, and I think that in terms of single-player gameplay the new content does not add too much.