BEVs are well suited to the urban environment so will probably stay.
Hydrogen is better where the fuel needs to be transported beyond the electrical grid although methanol is more easily transported.
I’ll go with Brydo’s observation about BEV batteries having long enough ranges in a few years & that will be what stops mass hydrogen adoption.
Now if you could find me a small fusion reactor to use that hydrogen & produce electricity from it I’d have to say that would sweep all other technologies aside, but as ever it’s 50 years away, same as it was 50 years ago.