You are asking people that have been asking same question without getting the right answer themselves, the only way for everyone to know what will happen to bitcoin is when the remaining bitcoin has been fully mined. Anything you are seeing now are just mare speculation and nothing specific. Although many people believe that miners will be making their money from transaction charges, but we will only know about this after the entire bitcoin has been mined. But personally I believe that there will be a way for miners to get compensated when the entire bitcoin has been mined. So let's not get ourselves worked up over what will happen to bitcoin, because I know for sure that bitcoin will be here forever.
I believe say after miners done mine the last Bitcoin finish, the next thing be say the scarcity of Bitcoin go make the worth of bitcoin big. E.G: As we know say when product no dey for market again the price dey always hype (increase) well well. And with the way people dey adopt Bitcoin everyday if for the future miners done mine the last Bitcoin those wey hold their Bitcoin go get big profit if them won sell because that time the worth of bitcoin go too big pass today own. This limited supply way Bitcoin get na be the reason why many investors chose to hold onto their Bitcoin becuz them know say that time go reach and the value go increase.
I understand you very much brother, cause when product gets scarce the price tends to increase for sure. You made mention of how many investors hold bitcoin so as to be able to sell when bitcoin is no longer available for mining again. But with all the few suggestions/ answers that has been brought up here, I believe all the Bitcoin will be mined in 2140 which is about 100 plus years from now, and you said in your quote that investors know of how scarce Bitcoin will be by then that’s why they decided to hold their Bitcoin cause of that time. But the truth is that there is every possibility we will no longer be alive by then.
Since we would no longer be alive by then, why are we holding it?