The miners have already begun their move to BCH. There will be no segwit 2x. The miners will leave BTC in larger and larger number over the next 24H before segwit activates and destroys bitcoin. This will leave BTC broken with massive block times as has already somewhat begun.
RE: BTC (segwit + 1MB blocks), BCH (8MB blocks), XBT (segwit + 2 MB blocks)... Which One Will End Up King?