- AP 2.0 hardware, more cameras and sensors
- replace side mirrors with cameras
- ventilated/improved seats
- improved interior lighting
- hopefully somethign to fix the lack of ventilation to 3rd row seats
- improved software
- Increased battery sizes (this is basically a given, I think)
They won't be able to replace the side mirrors with cameras until some laws change. The Model X prototype had cameras instead of mirrors, but they had to go with mirrors on production cars because laws in may states require the rearview be mirrors, at least the left mirror and one to the right of the driver.
I wrote them about cloth next gen seats a few months back and got a call a few days later saying they had a number of requests and would probably offer them at some point.
There are conflicting stories about what the Gigafactory is going to do to the battery capacity and price. Elon has said to expect about a 5% increase in battery capacity a year, but on the other hand, a lot of experts believe the Gigiafacory will enable an almost immediate jump of 30% in capacity. Elon has also said the Gigafactory will see a cost decrease of about 30% right from the start. If they pass that on to the consumer, that could drop the price of the car more than $5,000. Or they might leave the price points the same and offer larger battery packs.
I strongly doubt they will replace the Model S nosecone with the Model X nosecone. If the front door system is cheaper and more reliable on the Model X, I could see that making its way into the Model S. The door handles which are just hot spots is definitely easier than the Model S, but the auto opening doors might add more complexity than the retracting door handles on the S.
There was a thread about this a few months ago. The moderators may merge these threads together.
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Totally forgot two important issues. The vanity light and the seating profile. The biggest issue I have is reaching into the car over the steering wheel to change the seating profile so I can fit in the car after my wife drives (1 foot shorter than me).
Sounds like an option for the cell phone aps: the ability to select seating profile remotely.
BTW, I also am among those who don't think there will be any major changes to the Model S for a while. They need to concentrate on getting the Model 3 out there. They can probably afford to be a little late, but they can't be as late as they were with the Model S and X. They will also have R&D people putting tweaks and bug fixes into the Model X for a year or more. It's inevitable that something will crop up in the field that will require engineering changes.