This rumor does not want to die apparently
One thing that may make upgrade possible this time is that a lot of stuff is already there (braking, steering, some existing cables) which is what costed wk057 a small fortune (and time) to install on a classic S. They also had time to think on preparing an upgrade path as they were preparing the refresh. AP was not part of the plan for the S introduction but it is now a crucial differentiator for Tesla, and so they'd be once again disrupting the industry by offering software and hardware upgrades (and additional revenue streams). On the other hand mobileEye is getting dumped, so there is a lot of new logic boards to bring on board and *if* this is AP 2.0 with full autonomy a lot more sensors and cameras would be needed in addition to the narrow AI computer. Maybe it is more of an incremental upgrade before Level 4 autonomy.
I'd really find ironic that I waited so long before deciding on my refresh S to get AP, and it could be that my wife will get the new AP on her upcoming X...
If 'little birdie' or his big brother is flying around please drop some more insights there and there, we won't tell anyone