I just read on the Swedish Tesla forum that someone who had been in one of the stores had been told that the 75 kWh battery is on it's way out and that it will be replaced by 80 kWh battery. He wasn't told anything about the timeline so it could be tomorrow as they take away 90 kWh battery or it will be later this year when 2170 batteries starts to come to Model S and Model X. This also maid me think about the 2170 cells, as I remember it was going to start deliver to Model S and X 6-9 month after the production had started but then I started to search after the article I found that I remember wrong, this Electrek write last July. Tesla’s plan for Gigafactory vehicle battery pack rollout and why it matters This should mean that Tesla have already started to test 2170 cells in Model S and Model X if they manage to keep there timeline and maybe soon is ready to start selling them with 2170 cells. Of course this is speculation and I won't take it for granted until I see it in the design studio, the people at Tesla stores have been misinform before.