Yes, this is another possibility, but if this would be true, why would they switch production to the new line in June? There seem to be no need to do that if the battery supply does not improve.
Or may be they switched to the new line so that the old one can be upgraded as well...
Maybe I missed something but im im not sure they are using a new line in June, did Tesla say that?
im hoping #4 is not the case...is anyone here well versed in Japanese business culture to explain if its acceptable to have a delay? Or to post-pone an ETA? (I.e. Pushing back deliver of new batteries but 2-3 months)
im hoping so done will jump in and say that they are very familiar with Japanese culture and think it is highly unlikely a Japanese business would miss a deadline or post-pone an ETA they have given Tesla.