From a press release issued by the WCM MotoGP team:

WCM has now received the first castings for the next version of the WCM engine. These feature a Cassette Gearbox, allowing the internal ratios to be changed without splitting the engine. The castings will now be sent for machining.

WCM has to hope that the FIM allow them to compete in Jerez and further GPs so that the engine development can continue.