The new forums will be named Coin Return (based on the most recent
vote)! You can check on the status and timeline of the transition to the new forums
here.
The Guiding Principles and New Rules
document is now in effect.
need help understanding the last comic (blizzard & durm)
Posts
It's been discussed at length in the D3 G&T topic, and while it's a deal breaker for some, many people (especially those who enjoy Steam) don't seem to have a problem with it.
So even if there's a "single player" option, it'll likely just be, essentially, a multi player game that other people can't join, which is basically how I played back in the D2/LoD days anyway.