In my opinion Bitcoin Cash is here to stay AND this is a big and…come later when Bitcoin itself is ready to increase its block size and there is somehow another hard fork needed, Bitcoin Cash will really flourish.
Before then I think a lot of backers of Bitcoin Cash will slowly dump money into it to keep it somewhat comparable to Bitcoin. There might be some wild fluctuation right now and that’s because all the exchanges that have BCC/BCH wallets are not allowing withdraws or deposits. It is causing major discrepancies with prices.
You can find BCC/BCH for .1 BTC on one exchange while its .25 BTC on another. There are pumps and dumps on each individual exchanges going on right now.
Those who have BCC/BCH should keep it for the long term. And IF BTC really needs to hardfork again, I think then most people will have realized that BCC/BCH was the right path to take.