Daher, Airbus and Safran announced they are teaming up to develop a "hybrid-propulsion" aircraft to fly in 2022. Based on a TBM airframe still fitted with a Pratt & Whitney PT6A turboprop, the video produced by Daher reveals six electric motors mounted to the leading edge of the wing.
This is the way to go, using electric power to boost take-off, climb, and go-around power, leaving the rest to a reliable conventional powerplant, with, or without, an attached generator, depending on the kind of use envisioned.