One update that Roadshow's sources didn't talk about is the rumored P100D option. If this one is true, then a Model S (and maybe an X) with a 100-kWh battery pack will be coming as well. Tesla, of course, won't talk about future products, and gave Roadshow this statement:
In other words, Tesla is saying that it might do all those things, but you'll just have to wait and find out. Also, you should just order your S now.
We don't comment on rumor or speculation about future releases. Tesla is constantly innovating and adding new features to our vehicles to perpetually improve Tesla vehicles for our existing and future customers. We price our vehicles consistently throughout the world which requires us to adjust pricing to foreign currency exchange rates. We have let customers know that some price changes will take effect in early April. We always encourage those interested in purchasing Model S to place their order so they can start enjoying the many benefits of Model S today.