BlackBerry 10 cases are in the works by Hong Kong based premium case designers, VCOER. The BlackBerry 10 VCOER cases are for the unannounced BlackBerry Z10.
VCOER currently makes high quality cases for Apple and Samsung products. However, it is said that by January 30th (BlackBerry 10′s launch date) VCOER will have a full line for BlackBerry 10.
Check out VCOER website for more information on their cases.