First of all, if you count the rise from 200 to 20 thousand USD and back to 3 thousand it took a cycle of 4 years to happen, while BCH needed only 1 year (december 2017- december 2018) to drop from 3100 to 80 USD.
It never experienced a large pump ...
It simply dont exist long enough. If you want to predict what will happen with BCH in next few years you should look at Litecoin. Litecoin is a BCH competitor. Just one of them. There are plenty. Basically a Bitcoins protocol forks. All old coins with a community will do we in next few years.