In the EU there has emerged a fairly significant new auto service sector, EV battery pack replacements, and upgrades. Utube has a number of these businesses featured, I have attached one here:
https://youtu.be/C4nS_tSQiVQ
A couple I have watched are focused on the long selling Nissan Leaf, and the significantly larger capacity packs now available for these older vehicles.
It suggests that the battery capacity you might buy today in a new EV, may, upon replacement in seven or so years, gain significant range enhancement.
And importantly, a whole new automotive sector emerge here in Australia.