~snip~
If Bitcoin doesn't reach a state where it circulates among a large amount of people and businesses, its long term bull market will come to an end eventually. And while Bitcoin won't die, the first bearish phase after this top, which will last for more than a year, could become really hard for many hodlers.
I think it is very likely that all phases will repeat themselves as they always do, regardless of how many people get involved in BTC in one way or another in the current bull run. Of course, the main idea circulating in the media right now is the possibility of BTC being part of the US strategic reserves, and as we can see, some politicians in other countries are advocating similar ideas. If any of these ideas were to be realized, it could extend the bull run - but it's no secret that most of those who invest in BTC do so for short-term profit, so the trend will very likely change at some point next year.
Holders should have already learned that there are periods when the market is ruled by bulls, and that there are also periods when the market is ruled by bears. All those who cannot cope with this have one very simple option, sell everything as close to the peak as possible and wait for the next major price correction to reinvest.