Its just a cycle what we see every 4 year. You guys better get used to it.
Well, it is still hard to tell yet if history will repeat itself again, but as it is; I would not be surprised to see it do so actually.
For what it is worth, I believe that we might see the same thing over again considering how the market have been so far, and the extent to which bitcoin and the altcoins have gone. Truth be told, we can see some strong divergence for the altcoins by the way and if given the perfect condition, we may start seeing some good growth pretty soon.