What's interesting in Elon Musk's reply to Teslarati's Tweet is that Tesla's CEO pretty much confirms that the cell leaked on Elektrek yesterday was real. I highly recommend reading the article - if you are interested in Tesla and EV batteries - which Elon doesn't dispute (though that doesn't confirm all the speculation of course).
In my opinion battery advances and Tesla's new batteries are going to significantly drop the pricing of Tesla vehicles in 2022. Torque News' Paul Fosse says it will be below 30,000 dollars (the Model 3).
Electrek noted that the image of Tesla's Roadrunner Battery Cell was sent through an anonymous source and confirmed by another independent source. "From the get-go, it is evident that the cell is massive, closer in size to a supercapacitor than a traditional battery cell. Initial observations by battery enthusiasts online also point to some radical improvements that such a cell design would bring," writes Simon Alvarez at Teslarati