I think it's too early to say that. Maybe in December it's possible to say that.
Could SegWit2x Lead to Three Different Bitcoins?
Maybe have potential, did you see the cointelegraph site?
Little by little BCH is gaining attention, even exchanges that said they would not accept BCH are now being forced to accept.
Is this a good time to invest to a newest Crypto Currency?
No.
Do BitcoinCash will surpass the Bitcoin's success?
We wait until December to know. There are still more things to be clear
https://cointelegraph.com/news/could-segwit2x-lead-to-three-different-bitcoins