I think Bitcoin sealed its fate with the cancellation of Segwit2X.
It basically solidified it's position as an asset, internet gold, rather than a monetary system that was originally intended by Satoshi.
I'm expecting BCH to overtake BTC soon here. Although, I think BCH isn't much better than BTC anyway. The reason it's making these gains is because of the Bitcoin name. There are far better altcoins in terms of fees and transaction times. -_-
You name it. Both coins are just not suitable as a payment system and there are ways better ones out there. It´ll be used as the new gold eventually but nothing else IMO.