I say the ICE will never(?) go away as full electric just isn’t feasible in a free country. However, hybrids are feasible today. Well, when some bright young engineer builds a small ICE that only runs a generator to charge the main motor drive battery. Or maybe just to run all the accessories so the main motor only drives the vehicle. There’s several ways to reduce ICE dependency, but nothing will ever “replace” it 100%.
Well, there remains the Tesla wireless electrical energy derived directly from the earth, but someone stole and buried his work…