According to my service center, it is now a $5k upgrade regardless of when you purchased your model 3. Take that with a bucket of salt though. Service centers aren't exactly on the forefront of Tesla knowledge when it comes to policy, changes, etc.
What I don't get is that they're apparently confident enough in their FSD software to up the upgrade price yet they recently had to increase the autopilot nags. If they have solid FSD code, why not port bits to autopilot to increase safety/reliability rather than increase nags.
Also, I'd like to know what's going to happen in a situation where an autopilot failure (while hands off wheel) results in a death but if FSD had been purchased, the driver would have likely survived. I feel like they're going to *have* to add some of the FSD features (additional active cameras, etc) to autopilot but require hands on the wheel or it deactivates as usual. Basically, FSD would get you a hands off experience but the safety features would be present in standard autopilot (with the hands on wheel requirement).