BlueTracker

Short answer: No, it is not cancelled.

More robust answer: We showed some additional progress at BlizzCon this year, but largely let Diablo IV have the spotlight. There's a lot of Diablo to talk about, but we're trying to make sure each game has room to breathe and stand separately, which helps avoid confusion about each project.

Wyatt did make a post, over on /r/DiabloImmortal, shortly after the blog came out and BlizzCon ended. It's pinned there, if you'd like to check it out.

If you're excited about Diablo Immortal, I definitely recommend subbing over there.

We didn't originally provide an estimation, nor do we have one to share at this time. Sorry I don't have more concrete information to provide, but when we do have an anticipated release window, we'll be sure to let the community know. :)