Since FSD owners of MCU1/AP2 vehicles still have no clear path to getting the HW3 upgrade so they can run the latest FSD "preview" software and no indication if/when they will get an upgrade, Tesla should strongly consider an alternative (that could also be applied to any vehicles that has AP2 or AP2.5).
Instead of Tesla spending money for hardware upgrades to these older vehicles (which would be in vehicles that are now several years old), Tesla should offer an alternative to encourage those customers who've already purchased FSD to instead trade-up for a new vehicle that has MCU2/HW3 already.
The upgrade option could be something like this...
If a vehicle has FSD purchased, and does not yet have the HW3 upgrade installed, instead of getting the hardware upgrades, Tesla would provide the following incentives to upgrade to a new Model S or X:
1. FSD purchase would transfer to the new vehicle
2. New vehicle would have FUSC (Free Unlimited SuperCharging)
3. FSD loyalty credit ($5000?) applied to the purchase
4. Transfer of remaining extended service or warranty
This could help boost S/X sales to existing customers, that would probably not purchase a new S/X in the next year or two. It would eliminate the need for Tesla to do hardware upgrades on these older vehicles. And it would immediately get the early FSD owners access to the latest FSD "preview" features, plus eliminate the growing gap between MCU1 and MCU2 features.
I requested the HW3 upgrade at a service appointment this week for our 2017 S (MCU1/AP2). Tesla's response was unacceptable - our VIN isn't on the list; Tesla will not notify customers when their VIN's are on the upgrade list; Tesla has no estimate what our vehicle will be eligible for the upgrade. Especially for Tesla's customers who purchase FSD years ago, they could do better to recognize the risk those customers took in committing to FSD before Tesla had any FSD functionality available...