Since the BTC rewards and fees are now worthless, most miners stop mining BTC and keep mining GNC only. Only a few persist, for sentimental reasons. The BTC block rate drops to near zero for months, until the difficulty gets readjusted.
Then someone, not connected to Blockstream, GNC, or any other bitcoin entity, creates a new altcoin SuperShibaCoin (SSC)....
(Summary of what JorgeSolfi is saying: if one alt-coin overtakes bitcoin, people will lose confidence in cryptocurrency because it will probably happen again, and a series of popping bubbles is not a good store of value).
FYI Jorge has no interest is seeing Bitcoin succeed, his goal is to prevent people investing in it.
He has never used it and refuses to install a wallet so people can give him Bitcoin to play with.
There are a lot of other quotes to draw from. I don't think there is a single scenario where he thinks Bitcoin succeeds, but for hindsight.