The essence of bitcoin as a payment method is starting to change. As OP said, people wants to keep it and store it for better profit and use it as store value.
There's a big company in China that started to use BCH for the payment of their product and started to stop accepting bitcoin. The closest candidate will be ETH and not BTG, BCH,BCD or any fork coin.
But we can't remove the fact that bitcoin is still the best for payment.
Perhaps you mean Bitmain that stopped BTC as payment and started accepting BCH. That was the plan of Chinese whales to replace original BTC with fake one and they failed. BCH will not succeed at the end