I hope F1 revert to an all engine formula, that they only allow batteries for the laptops and the brake fans, batteries are not an F1 thing, look we had hybrids as long as we have had cars, the only reason we never had hybrids for over a century was the very impossible task of getting power to all parts of the US, when it was cheaper and more cost effective to bring a liquid power source... So if we had managed to cure the problem of power to all parts of the US in the early 1900's, from the late 1890's, instead of "gas", then Formula E, would have been the formula Mr Fangio drove in the 1950's.. ICE would never have been viable...
Just an alternate universe take on evolution of F1.. Would ICE power or Hybrid, or pure battery been the choice in 1950???