I can believe that a larger proportion of gaming will be on mobile devices, but I see it as more of a swinging pendulum than a revolution. You had the same wave of "mobile revolution in gaming!" articles in the tech press in 1989, when the Game Boy was released, and it did indeed have a significant effect on the game industry and game design. Kind of waned for a bit, now is back.
The tech wasn't ready yet but everyone could see it back then. It may not be ready now but it's really close. I would give the console one more generation of dominance before everything is upended.