Dean - I would expect that
Dean - I would expect that once the Austin, TX Factory begins producing Model Y's that they will have the front & rear castings, the 4680 structural battery, and the enhanced paint process that will first be released in Berlin.
I don't think it would make sense to build a brand new factory in Austin and outfit it to produce the current design of the Model Y when the one in Berlin is a superior design which hopefully will also have a lower production cost.
What I'm curious to see is how Tesla will deal with issues related to a new version of the Model Y being produced in Austin while the older design is still being produced in Freemont - they said that Freemont will supply vehicles to the West Coast, while Austin will supply the Eastern part of the country. I'm in Colorado - do I get to choose which one I want? I will be waiting to see how they address this issue.