My overall opinion about this Blizzcon* (Everyone should keep in mind this wasn't a typical, big blizzcon, but more of an online reveal of some info with some limitations).
It was bad. WoW dive was horrible and awkward, but the Diablo one was actually interesting and fun. The Q&A is, as always, overly safe and controlled with all the typical questions we get every year. And the 'extra panels' like Thrall, Voices and Cooking were all absolutely pointless, even bad on some cases.
As for the reveals, the Diablo 2 : Resurrected alone, was enough to make me happy as a big reveal, and having given up on lots of their franchises (no info on Starcraft for example) makes me sad.
So yea, i would have hated it if not for the D2:R and TBC confirmations, but those made it 'nice'.