I am sincerely sorry that I cannot agree with you. Bitcoin will never be replaced by a coin. Bitcoin Gold is no longer the position it started in the market. You can easily understand that by looking at the graphs of the last few months. I do not think anything could be next bitcoin, nothing is like bitcoin, not even ethereum, but could this thing make some people some money? Well of course, so many coins went up in the but BTC will rule forever in my opinion.
You said it right. This discussion about the next bitcoin should have been ended a long time ago. Bitcoin gold or any other altcoins, there's no sense to talk about that with bitcoin.
The firstborn cryptocurrency will never be replaced if we're going to compare it with the rest of the altcoins in the market. They should have given it up with such comparisons and with bitcoin reaching a crazy ATHs every single time, there's really no point to discuss it.