I'm still confused. Elon doesn't say whether you have to have ordered it before delivery to be entitled to the hardware upgrade. And to say that Elon said or tweeted something settles the issue makes me laugh. I'm still waiting for Google Chrome in my S that Elon promised by the end of 2014...
Tesla Model S to get app support and Chrome by late 2014 (video)
Google and Tesla combine forces to bring Chrome inside the Model S by end of 2014
What class action lawsuit are you referring to? If you're referring to the AP one, it settled for peanuts to owners, as they usually do...
Tesla agrees to settle class action over Autopilot billed as 'safer'
Tesla settles class action suit over Autopilot claims for $5M
So if history is any example, I wouldn't expect any "free" handouts from Tesla unless forced to do so by legal action.
I wish that was true but it sounds like more like wishful thinking than what I've witnessed.
In my opinion, Tesla service centers will be far to busy to do even minor retrofits so they will make excuses and delay as long as they can doing any "free" upgrades. That's just my view based on following Tesla's past practices. As to the future, only time will tell.