Depending how far down the rabbit hole they go in weird microwave resonating cavities and power amplifiers, maybe something of practical use for radar systems or other uses of multi-kilowatt microwave band power amplifiers will come out of it.
The outcome was known for 4 years already, but then he needed 4 years to confirm the first results with fool proof measurements. Nobody else should need to wait years for test results, but the pressure and expected flashback was enourmous.
"We were able to greatly improve our measurement technology as a result"