"when it's ready"
Or in this case when he has the time to look up at his screen from counting all the blood money!

Haha no but seriously, even though I've been quite disappointed in Blizzard when it comes to the last 3 WoW Expansions (well prolly 4 cos Legion ain't looking so hot either), Diablo 3 etc.. sure you can't fix the mistakes of the past, but they could always make up for all of it by doing things right in the future, making legacy servers, a really good expansion to WoW (one that's more like Vanilla/TBC), WC4, maybe World of WarCraft 2 or another MMO that's more serious and sandboxie/challenging etc..
But ehh.. naah, in the end it just becomes that battered wife syndrome thing, where you hope things are going to change and that they will announce legacy servers at the next Blizzcon or sooner, even though everything points to it not happening.
Sure would be awesome though ^ ^
It wouldn't make me instantly forgive them for all the crap, but it would at least make peace.