Alot of new parts arriving next week, including the WC upgrade kits which include new chassis, new bulkheads, stiffeners, extension arms, etc...
Main feature is different positioning of the front diff (moved further back), servo position and ackerman, and rear stiffener options.
Also, a new thicker 3mm radio plate will be a new separate option.
You can see alot of the new WC upgrades on Simon Kurzbuch's car from the worlds last week: