It appears that Greg Street, aka Ghostcrawler, is leaving Blizzard for other opportunities. Considering he’s been the design face for 3 expansions, this is a big enough deal.
From Vanilla to the end of BC we had one mentality and strategy – integrated and complex systems with little give. WotLK, Cataclysm and MoP were all about separating systems and adding accessibility. WoD is a feather in that cap, from what I’ve gathered so far.
For good and bad, Wow is Greg’s puppy and it will be interesting to see who will be left to pick up.