I hadn't really planned to examine the 2004 box art of World of Warcraft so deeply, but take a look at this portion. It's lacking in detail, but I think you'll see the same thing I'm seeing:

When WoW was released, I had a hard time convincing my girlfriend to switch. One of her comments was a lack of classes and in a related note she pointed out that there was a race ("with horns") on the box that wasn't in the game. I looked at this little screenshot on the back and brushed it aside as a helm.

Now hindsight is 20/20, I see a female Draenei casting next to a Tauren. Maybe they were meant to be female Tauren at some point? I don't know, I'm not going to read too much into it other than when the game was released, what was in this image didn't make it into the game.

That's not a critical observation, much the reverse.

Yeah, I'm using this in my leverage against the 'polish' catchphrase. To me, this is what polish actually is, Blizzard cut things from their game as late as the box art going to press. They stuck with what was working and they shelved the rest for a later date.

Is this any different from other games? I don't think so. Blizzard had a smaller audience examining their pre-release, plus their PR team knows how to keep things under wraps. There's this myth that they had no beta NDA, but they segmented concurrent betas for PR: the more public one with no NDA, the closed-beta for real testing and even a friends-and-family server in a state between alpha and beta.

Even WoW's public test servers now are notorious for not so much testing (because invariably, most every mistake on PTR will make it to Live) as advertising upcoming changes.

That's the sort of misdirection that Age of Conan, Warhammer and other upcoming MMORPGs are lacking. Hide what you're working on, trickle out the good info and save the hype for what's actually going into the game.

It's pretty hard to do, because people rarely recognize what it is.

Blizzard wasn't perfect at it either, they had features anticipated that never arrived, but they also didn't have the same massive community of anticipating fans that have followed in WoW's wake.