They put it so high because it is most likely 2019 model and they don"t want you to see that
Sales on current model incredibly high and Toyota probably doesn't see any reason to change anything until they start to see lack of interest. I predict no 6th gen for at least 3 more years. Also basing on new Supra (...ahem! BMW Z4...) stunt nothing will surprise me, even Asian market Fortuner as next gen 4 Runner.