That image nearly sums it up.

Assuming that the USD flops, the value of crypto would increase dramatically, and those who sell mining hardware of any kind (Sheep will buy the ASICs up like mad) will make a massive profit as well. Even companies such as Nvidia and ATI and AMD will earn tons, due to the amount of GPUs people will be buying for coins like Dark.

So in short, if the USD flops toward the flor, cryptos will become the new way of life, almost no contest. It'd be brought down to two things:
1. If power is still runnning
2. If there is a mentality that only "physical" things have value

If you can tell me exactly yes or no to those two questions, then I can tell you if cryptos will increase in value or not.