In the future I reckon it'll be commonplace to order a new motorbike and have it spec'd to personal choice at the production line. Just like cars.
Electric bikes will happen, and once they are affordable to the masses, it might be just what we need to get a new generation onto PTW. Especially if manufacturers grasp that fact and see electric bikes as a blank sheet for exciting designs.
Us old fogies and the traditional i/c engined motorcycle are old news. If I was 20 and went to a bike meeting, I'd see bellies, baldies and wrinklies. I'd turn straight round and look elsewhere for my kicks.