You have both of these options with BEV+H2, the H2 is just a ranger extender to keep the battery smaller, refueling on the road more convenient and the car's price lower. Renault has already done this for commercial vehicles (Master and Kangoo ZE). Plus I'm sure there will be options with the H2 tank compartment filled by a larger battery for people who prefer the former.
https://www.renaultgroup.com/en/news-on-air/news/kangoo-z-e-...