Official Chinese Candy Package had leaked the first image of one of the three dark giants from Ultraman Trigger. This is Hudrum. After Ultraman Nice, he must be the second Ultra to have a color timer on the left instead of center. Even the original Hudra had the color timer of the center.
The candy box next to the one gives us a glimpse of a new monster's head. It looks pretty similar to Ghidorah's head.