If Transport Evolved's information is correct, then I could see this being a Model X related announcement. I know it seems a bit odd to have it over the phone rather than in person, but it could be in keeping with the "not shown until delivered" mantra. They could release all the information relevant for customers to begin placing orders, including:- Base price- Basic specifications (range, acceleration, dimensions)- Relevant options, perhaps keeping a few secret- Delivery schedule- A few updated renderingsEssentially, the call would be revealing the Design Studio while saving the up-close reveal for when deliveries begin. Early Signatures would not have the ability to see and touch the car before ordering, but I'm sure Tesla would provide some recourse such as the ability to reject delivery without penalty should it not meet the buyer's expectations. The regional specific information after the call would then give other areas of the world approximate timing and local pricing.