Namely, the Bioweapon Defense Mode and a 100kWH battery.
Tesla Model S may get 'Bioweapon Defense Mode' and 100kWh battery option this week | The Verge
The Tesla Model S will reportedly gain the "Bioweapon Defense Mode" air filtration system from the Model X and a 100kWh battery option. We've heard from a source that the new options may be introduced as soon as this week, alongside the debut of the Model X custom order configurator on the Tesla website. The current largest battery available in the Model S is a 90kWh option.
Tesla Model S may get 'Bioweapon Defense Mode' and 100kWh battery option this week | The Verge