After everyone and everything on the planet got nuked in a nuclear war, the BTC blockchain will be the only thing to continue to exist and that could be recovered from one of the thousands and thousands of copies redundantly distributed around the world.

Hm 5.5 years is a very long time and if you go back 5.5 years, so many things happened that have been on nobody's radar. The pandemic, the war, many other things.

You ask for an educated opinion, but I wonder how educated an opinion can be when it is about a point in time 5.5 years ahead of us. But I guess you might be asking for more of a general trend that everyone believes BTC will follow and I agree that if we don't get all nuked, BTC probably continues to thrive and expand, and hopefully, hopefully, there will be some technological innovations for BTC that allow for it to be more properly used on a daily basis. In other words, solutions for congestions as far as it makes sense, i.e., doesn't undermine security too much.