Is suspect large trucks may eventually move to hydrogen, but smaller passenger vehicles will stay on batteries. The nature of hydrogen containment favors larger capacity, on account of better volume to surface area ratios.
>Is suspect large trucks may eventually move to hydrogen [...]
They won't, why would they? The number of hydrogen gas stations is going down and the price is going up. Batteries are good enough already - the Mercedes eActros 600 with its 600 kWh battery has a range of 500 km.
Hydrogen was marketed as a stopgap until batteries are good enough. Well, batteries are good enough for trucks now:
https://www.electrive.com/2026/01/23/year-end-surge-electric...
Once you go battery electric, you never go back. It's the most efficient way to move vehicles.