The higher the voltages it can handle, the faster it can switch efficiently, and the better the thermal performance, the wider its potential applications in power electronics.

Hmm, power electronics is often so big, that might need a lot of diamond and could get pricy, who knows.

Very low power chips might be the main application, as there is already a huge market (laptops and phones).

Or maybe there will be a whole set of new rf chips, profiting from the clock speed.