Toyota have lead the way in hybrid cars for years now, and they see a future in hydrogen celled electric cars. I would definately have one, but as with everything, it needs to be a consumer price as opposed to a rich git price ie. Tesla.
Also, graphene is being used more in batteries which make them lighter, more powerful and can hold a charge longer. https://www.graphene-info.com/graphene-batteries
Good article here:
http://driving.ca/toyota/mirai/auto-news/news/hydrogen-vs-electric-which-is-actually-more-efficient