Exchanges don't care about any particular coin. They only care about their users. If their customers demand trading of segwit2x then that's what what will happe

Exchanges don't care about any particular coin. They only care about their users. If their customers demand trading of segwit2x then that's what what will happen. There could be a lot of opportunity for trading segwit2x because the volatility which is what traders like. Same goes for all other bitcoin forks, it's going to be a trading bonanza for the exchanges!