This does not look good:
https://www.bitsonline.com/bitcoin-gold-scam-btg/"Coinbase, Bittrex Refuse to Support BTG
Two of the worlds most dominant crypto exchangesCoinbase and Bittrexhave officially come out against supporting the Bitcoin Gold fork.
Coinbase is standing their ground as the BTG devs refuse to release the BTG code, which is a huge red flag for Coinbases compliance officers.
Bittrexthe 3rd largest exchange in the worldis refusing along similar lines:
At this time, the information and codebase presented by the Bitcoin Gold team is not in a functional state and Bittrex will not commit to opening a Bitcoin Gold trading market.