Football isn't going anywhere. Just like anything it will evolve. What did the NBA look like 35 years ago?
Changes will occur, but, the game will continue on for a long time to come, longer than anyone posting in this forum.
The real crux, IMO, is to get pads off of kids in youth leagues. No need for contact until a minimum of high school level.
Equipment has made great strides as well, but, I still feel less is more. You strip equipment and the viciousness of hits in the aggregate will subside. There's always going to be an idiot who was taught by his idiot father to "be tough", but that is becoming far less common than even 15 years ago.