Thank you for the links, I found these quotes illuminating...
That range will keep improving with better battery technology, and may eventually be able to fly as much as 400 kilometers (250 miles) in the 2030s,
The aircraft uses a 400kW electric powertrain - the equivalent of a 535 BHP supercar.
I agree that progress will be made but the SAAB airframes will be out of service before the technology is available to electrify them.