I'm hoping that someone creates an electric self-launch glider with complete propulsion redundancy: two 20kW motors, two propellors, two batterey packs, two speed controls. Any single failure would leave you with at least sustainer performance.

A traditional motorglider must be flown like an unpowered sailplane; you must keep safe landing options within glide. With sufficient redundancy, it would not be unreasonable to enjoy soaring in some entirely new and inhospitable places.