If you want an electric rotary cutter, there are some already on the market and have been for years.
I have a Birdie.
These run at very fast speeds. You would have to be very experienced to cut quilt blocks with an electric cutter.
They are great for stacking layers of fabric, about 6, and cutting around a heavy cardboard or plexiglas templates.
I have much experience with an electric cutter and would not be able to cut quilt blocks accurately.