In a world of renewable energy, the battery technology that wins will not be based on charge time, density, or longevity but on cost and the ability to be efficiently recycled.
I think you're right. I could see a future where the charge station ends up just swapping batteries with you (kinda like the way propane tanks work in some places). Give them your used one and they give you a charged one. Adjust for power left on the trade-in and quick quality checks and validations on the units being swapped.