Just kidding...They are being really careful to keep the new livery a secret. The whole aircraft is white to hide the livery.
So far, what is known is that the main color is lime green with the dark blue and orange from the AQ livery. "Aloha" in orange and "Air Cargo" in the lime green is written across the whole fuselage as well as the engines. The tail was covered in black plastic, but appears to be mostly lime green with the dark blue making some kind of design.
If you look closely, you can see a lime green mast/antenna on the tail cone that wasn't painted white. They even painted over the titles on the engines.
For a sneak peek, check out the picture from the airliners.net forums: