The last public comment on it, from Stockton, was "It's something we'd like to do, someday." Doesn't sound like it's a priority, or even at a business planning stage, even though some usual suspects translated that as "we're doing it". The same ones who were making smug comments about "we'll see when they announce them at Blizzcon". Which didn't happen - they wouldn't even allow comments about it in the Q&A's. I suspect they're as sick of it as a lot of us are.
But, it doesn't matter. Blizzard will do what they want, it's their game. At this point, these threads are the equivalent of a 6 year old tugging at their mommy's skirts going "Mom? Mom? Mommy? Mom? Mommy? Mommy? Mommy? Mommy?" for hours every day, to get a cookie.