One way to interpret "hw3 upgrade only for previous buyers of FSD, but not for new" could be if new cars now coming off the line already have hw3 so no upgrade will be necessary.
Given that the software isn't "feature complete" yet, perhaps everyone is "in the same boat" right now in terms of features, but once the hw3 dependent FSD comes out then they would need to start offering upgrades to cars that didn't already have hw3. So maybe they are trying to hint that some buyers of new vehicles may not need any hardware upgrades without being too specific. Maybe they don't want buyers to be demanding an hw3 equipped car right now, and want to be able to deliver older cars without resistance?
Does anyone know of any way to tell if a Model 3 already has hw3 installed?
The report is nothing is shipping with HW3 and they don’t expect anything with for ‘months’