I think you may have it backwards Iani...
Hydrogen power is somewhat of a pipedream at this point. Hydrogen is produced by the oil refining industry and by electrolysis, which uses massive amounts of electricity that has to be generated somehow. Hydrogen is an explosive, odorless, colorless, gas. This presents all kinds of problems in transport and storage that are expensive to solve.
If we are using less oil, then the amount of hydrogen produced from refineries would be reduced. If we use electrolysis than a power plant is required. The conversion process both ways is not 100% so power is lost when you make the hydrogen and power is lost when you consume it.
As we already have electricity infrastructure in place (though not enough if we were all driving electric cars). It makes more sense to focus on pure electrics. There is less loss in conversion and much less cost in logistics.
A pure electric vehicle is also much simpler and potentially much more reliable than either a hydrogen internal combustion or hydrogen fuel cell vehicle. There are less parts to break or wear out and you get rid of a bunch of nasty fluids that you have to change. Maintainance parts such as air filters, oil filters, pcv valves, spark plugs.... Gone.
I think this is probably the real reason we haven't seen more electrics. The dealer mechanics are a pretty serious chunk of revenue to lose. Not that they would dissapear, but when is the last time you did an oil change or a tune up on your fridge?
I think the way forward is pure electrics. We should focus on storage tech. The lithium batts are getting better and carbon nanotube ultracaps are getting better and cheaper. These in combination are probably what you will see next. The carbon nanotube material can be made in sheets now so I could even see molding capacitors as body panels, fenders, etc. Of course then a fender bender would reduce your range, or weld you to your hapless victim.
No, its just President and he's ours, get your own media messiah, hehe.