What will happen in
BTC bitcoin market when another fork hits bitcoin, results in emerging bitcoin gold as new coin
Will price of bitcoin go down
Will new coin get popularity like bch

I think bitcoin core has proved to all those splitting from it that it has no competitors and that the more the split the more popular bitcoin become. I have been following this market for quite a long time and I think most of the hard fork favour bitcoin core. We were below $1900 when the last hard fork and splitting happen august this year but today we are above $4000. October 25 hard fork or splitting will push the price up to $7,000 and I don't think the new coin will be popular like bitcoin cash.