I based my opinion on BJCP style description for American IPA, along with the dry hopped IPAs that I've brewed. And yes, I do realize that it says that "they may be hazy" and not "they will be hazy". I should have also mentioned that I was speaking about unfiltered beers; however, you guys seem to be able to make your dry hopped beers clear without filtering, so I stand corrected.
In my experience, the only beers that I brew that don't end up crystal clear are dry hopped. I don't filter or use post fermentation finings and all of my other beers are crystal clear or pretty close. I notice an improvement over time but I've never gotten one of my dry hopped beers as clear as my non dry hopped beers. That's not saying that they are super murky, because they are fairly clear, just not clear like my others.
BJCP Description American IPA
Appearance: Color ranges from medium gold to medium reddish copper; some versions can have an orange-ish tint. Should be clear, although unfiltered dry-hopped versions may be a bit hazy. Good head stand with white to off-white color should persist. *edited*