I pose the question out of curiosity and because my Tesla is totaled and I want a new one but if a 100+ comes out within maybe a half year I could wait. here is my guess that I've had for at least the last year when I heard about the model X coming out: 1. It will be about the same time as the SUV comes out (late 2015?) 2. they are not going to sell an SUV with a bigger battery than the performance model S and SUV drivers would more likely want their vehicle to go further for trips which would require a bigger battery. (300 miles actual) 3. Also when the economy version comes out they will want to show a bigger difference between the low-end vehicle and the high end vehicle... for example 200+ actual miles on a charge versus 300+ on a charge. 4. If they don't make a bigger battery the car will never be able to utilize the full 691 hp of the two motors. (P) 5. And as it is now with an 85 kWh battery, the S and P are basically the same after the sprint to 60... Or at least close enough to make you not want to pay an extra $20,000 post sprint. 6. Finally I realize they are not about to advertise the next bigger battery even though it's been several years with the 85 as the top-of-the-line because that could stop sales of the current biggest battery...similar to the nonannouncement of the 70. Thoughts, insider info??? PS, cement highway dividers do NOT budge, even with a direct hit!