What would the difference between AP2 and SA1 be? Like you enter an address into the GPS and it just starts driving there?If AP2.0 = SA1.0 (Semi Autonomous, Level 3, highway), then I would wait a few months to get it. I have my suspicions that AP2.0 = SA1.0, but that's just my unfounded guess. I don't see a point for Tesla to release an AP2.0, with more cameras, but that's still not capable of semi-autonomous driving. If they do that, they'll also have to support non-AP, AP1.0, AP2.0 and SA1.0. Otherwise, they can skip a whole set of hardware to support.
If AP2.0 only gets you better sensors for AP1.0 capability, I think AP1.0 is "good enough" for most cases right now.
<- Has Model S with AP1.0