IDK. Having been around for over 60years and having ridden and driven for over 40, I don't think things will be all that much different in another 20. Yeah, there will be some vehicles with more self-driving capabilities, and a bit more infrastructure in urban and some suburban areas, but by and large it won't be that different from what's going on now. But it's also been tricky trying to forecast the future.
The major changes I have witnessed in all those years are greatly reduced pollution and improved reliability of cars. Oh yeah, and tech providing more opportunities for distracting the driver. I expect that it'll starting going the other way with tech innovations starting to improve driver and cyclist's safety.