I doubt that in conjunction with the NX release - which has a 14" screen - Toyota would tease a 17" screen option if the NX won't get it. They have to leave some things for later and to seem special for the LX reveal.
Also, most often the scaleability of things like this depend on the aspect ratio of the screen. If the LX has the same aspect ratio but on a 17" screen, I don't see why that would be a problem?
Yes, but the press release specifically mentions it scales down to an 8” screen, a size which hasn’t been announced with the Lexus Interface yet. The standard screen is 9.8” in the new NX.
So I don’t see why they would announce the system scaling down to an unannounced 8” screen, but not an unannounced 17” screen, particularly when the press release is focused on the next-gen system, and not the NX which was mentioned only once.
PLANO, TX (June 11, 2021) – As the need for a more personalized and intelligent in-vehicle experience continues to grow and be a driving force behind vehicle selection, Toyota Motor North America (TMNA) is proud to unveil a new multimedia solution delivering an exceptional in-car user experience.
Also, it’s ideal for car companies that these UX can scale easily to different screen sizes, but there’s a lot more work to it than just scaling it up to a bigger screen. There’s a lot of work involved in making sure that the UX is not just scaled up to the different sizes, but that it makes sense. They may tweak the UI/UX to take advantage of bigger screen sizes and fitting more content to use the increased real estate.