I didn't always believe bitcoin cash stood a chance, but with its addition to coinbase's new plan as the paypal of crypto, I think it has more actual opportunity than ever before. The bitcoin community is still sitting on their hands as far as increasing block sizes and lowering fees. This will hurt bitcoins reputation and we are already seeing the start of problems. Although I am happy to see bitcoin pumping on its own right now, it still has major infrastructure issues that need to be ironed out. There is no getting around this in the long term.
Although I think bitcoin cash might get some adoption, bitcoin can still solve its problems whenever the political will is there.
either way it will never replace the mark, bitcoin already made on the market place and of the users. their is no way bitcoin cash can control or rule over bitcoin now or in the near future.