You'll be waiting until 2020 to get a 2020 model. There are no real model years for Tesla, just the build year. Changes to the car are continuous, but frequently coincide with builds for U.S. cars for each quarter. If you're not waiting for something in particular, ordering after a change is announced is about the best timing you can do. I waited for AP2 and then another quarter just to be sure. I ended up paying $500 to change that order to a 100D when they were first announced. Thankfully my car stayed relatively current after that, for almost two years.