I dont think DxO is exactly fond of Samsung cameras, that might be why.

Or Samsung didnt supplied cameras at all.
...
Obviously it isn't that they had no access to a camera. Perhaps my first message was not clear? In April, and now in May (for a few more hours) if you look at their info on the NX200, you see a line that says:
"This product will be tested and reviewed on May on dxomark.com. Stay tuned by subscribing to our newsletter. "
In April it said April. They clearly have access to a camera, and have or at least had (in April and May) some intention of testing it. Since the NX20 and the other new models have been said to have the same sensor, it would still be relevant, and at the moment there are some great deals going on the NX200, so it is still relevant to possible purchasers as well.
I am just wondering if they will change it in a day or two to say
This product will be tested and reviewed on June on dxomark.com. Stay tuned by subscribing to our newsletter.
or will give up on it and delete it, or (maybe) actually post a review!