How likely is such a scenario, is a debatable story, same as price of Bitcoin rising to $5k. I don't see contradiction here with my previous posts.
The bitcoin does not have to substitute the fiat for it to be $5000. It can be just used as a store of value, and the price can be higher.
I think this will not happen at all right now its way to early to even say it, the bitcoin is not ready for such a high amount in my opinion.
Bitcoin first need to overwinter the halving if that happened we can say if the bitcoin can hold a high amount.
Price rises before that will not hold the amount of it, I'm very sure of that right now.