Did not BMW's i3 not have a range extender engine for a few years before they gave up on it and increased the battery size instead?
As for my take on hybrids, they certainly are an interesting option, but they can't be the future as the Governments have already taken the decision that hybrids will be phased out from 2035. The question which I think is still unanswered is what type of hybrid and what emissions will be allowed between 2030 and 2035.
Watching a video explaining the current Honda hybrid set up, its a very interesting engineering design, eliminating a gearbox and designed so that the engine mostly operates at its best efficiency.
Having run a full EV for the past year, its not the future based on the current state of batteries, range etc, but the Governments have decided it is. The biggest issue is the charging infrastructure, time it takes to charge, especially between 80-100% and lack of super chargers. Cost of electricity has now become an issue as well.
Looking at the selfish way some people drive, public charging equitete is never going to happen.