It would not surprise me for Tesla to keep VERY quiet about GF3 progress until its time to make some big announcement, when i think the numbers may be a very big shock.
Well, at the very least, I'm sure we'll get a major update in the Q3 letter.
People think tesla cant keep secrets...but who knew about the roadster? maybe they are going to have the same attitude, but this time with production milestones.
And Semi. And Model Y. And they're doing a good job on Pickup, too. Really, Tesla's done a superb job at containing leaks of unreleased designs.