bashiok:

We just want there to be some kind of order to how characters in the game look. Even with the current restrictions you can do some pretty crazy stuff, but that doesn’t mean it should necessarily be anything goes. And it’s a big new(ish) system with potentially far reaching consequences if we’re not careful. At least to start. We’ve pretty frequently made changes to the rules to allow more transmog options, and that’s likely to continue. Over a slightly longer term we think there should be a more defined system around transmog, with more defined paths of gameplay to specific options and looks. It’s not news it’s something we’ve been working on, and we’re continuing to work on it.

Yeah just think about what it would look like if everyone was running around with legendaries on

Oh wait

it looks like this