I think once we get hot-swappable batteries then it'll really kick start the industry. The only problem is Li-Ion isn't recyclable or easily disposable.
I posit that the people enthusiastic about battery swaps aren't EV owners [yet]. There are too many practical issues with battery swaps, and larger batteries and superchargers are simply better answers.
Battery swaps will never be a thing.
EDIT: Better Place(TM) were pushing this very concept and had a LARGE presence in pilot countries, including Denmark. They flopped.