I think there will still be bicycles in the future, but the future will be different from now.
I am 51, and in my youth, if you wanted to go someplace, that is why you had a bicycle. My parents did not believe in hauling us kids around.
Now I hear things, "you can't let your kid ride to school, that might be dangerous."
I don't know how many of you do day rides, but I don't see a lot of young people on day rides. Attendance in general seems down on day rides. I feel like I participate in a middle aged sport.
On the positive side, now we got rail trails, bike routes, bike lanes (though I hear they are not as safe as you think), helmets, decent lighting for night riding, breathable clothing, and studded tires. Cheap component groups are better than ever, and bike are lighter than ever.