Before you ask:
No, it still doesn't work going into or out of the flag rooms in Warsong Gulch.
Places it does work:
Going into and out of most other doorways. Up stairs. Through a great many smaller objects. Over unusual terrain, far more frequently than it used to. Overall: it works a lot more often than it doesn't work.
See, in case you missed it (as I did until helpful tipster James pointed it out to me this morning), Ghostcrawler dropped by a thread on the Damage Dealing forums (ironically titled "Blink Will Never Be Fixed") to drop this bombshell on us:
"There was a fix to Blink crossing terrain (such as indoor to outdoor) in 3.2.2."
I don't know about you, but I've been vigorously combing the book of Revelation for other signs of the coming apocalypse to be on the lookout for, just so I'm ready. Details after the break.