I wouldn’t bet against it, with almost every game-changer or major innovation in last couple of decades I’ve said “that’ll never catch on” suspension forks, full suspension XC bikes, Carbon Bikes generally, carbon bikes for anything other than super-light XC stuff, carbon DH bikes, 29ers, 650b, wide bars, wider bars, even wider bars, 9sp, 10sp, 11sp, 2x drive trains, 1x drive trains, electronic shifting etc etc and I’ve scoffed at these ‘gimmicks’ and 12 months later they’re the next big thing and 12 months later they’re just the norm.
As for racing, they’ll probably go down the F1 route of maximum capacity, maximum output and maybe even some sort of energy recovery system.