Likely.
Now every single minable coin (and non-minable) is overpriced. Total hash power is insanely high, most coins' mining difficulties are ridiculously high, all GPUs sold out etc. And still more people are joining the world of mining. This growth isn't sustainable.
If this trend keeps unchanged...
Within a year or two, mining difficulty of every minable coin will be so high, and all mining hardware will be so overpriced, that it's not profitable anymore for anyone to mine, without first investing at least several $10k in hardware.
And if the crypto bubble then bursts, most coins crash some 80%-90%, even the biggest miners will lose money mining, just like bitcoin mining back in 2014.
So yeah, mining will be dead probably by 2020.
At that time expect the craziest GPU dumping sell in history. Be prepared to buy some nice used GPU cheap!