The difficulty bomb was meant as a mechanism to slowly get people off of mining eth. Now that its going to go from full speed to a sudden stop on the POW side, get ready for mining profits to jump down hard and then fluctuate until everyone gets settled into their new coins.
With or without ETH PoW algorithm mining will continue, things will get rough at first but as time pass by miners will have their days back again, I'm looking into Alephium and Ergo.