I would say the when is a huge question for many people, is this 5 to 10 minute full charge going to happen in 5 years or 35 years? Just because some thing is better technology really does not matter, there have been many products produced that lost out in the end, even though they were the superior product. I can remember years ago when everyone thought diesels were the future for cars here in the US, in fact my brother owned one, nothing but problems. Now they sell well in Europe but just never caught in in the US. EV's may well be the same thing, just the hint during the Biden administration that they were pushing EVs and cutting down production of ICE vehicles went over like a person with VD at a group orgy.
No one can predict with much accuracy what the American people will want to purchase next year let alone 5 to 10 years from now.