The next king of the hill

F#, R, D, Go.

Which will dominate the industry in the future?

If you know C and keep up with the news you should already have a good guess.

>>20
>Mainstream? there's not even a strong AI that's niche at the moment.

Siri and IBM Watson. The self-driving car is on the horizon.

As for Moore's Law continuing indefinitely, that's a physical impossibility. We haven't had major single-core performance increases in the last decade, except that which was mined out with instruction level parallelism. Any future improvements here will be very minor and incremental.