I don't know about that. That would be a pretty big deal that the media would run with, one version has upgradable range while another version does not... sold simultaneously? Even if the number was low like you imply such as 30/70 or 20/80 in terms of informed versus uninformed, that's still a large number of buyers that wouldn't make sense for Tesla to gamble with.
Upgradeable range? Where did this baseless rumor start? The idea that Tesla could sell a locked version of the 4680 Y to keep parity with Fremont 2170 Y and then later pay more money to unlock more range?
How did that “wishlist” item that this thread created get mixed into the “inferior” talk?
Not gonna happen. A range parity 4680 Y will simply have a smaller battery. No upgrades to be had.