Is it possible that Bitcoin could increase its total supply in the future? But that would certainly cause Bitcoin’s price to drop significantly.
Could Bitcoin switch to PoS like Ethereum? That would also cause Bitcoin’s price to fall.
There is no need to worry about the future of Bitcoin and Don't be discouraged by the issue even though PoS is considered more energy efficient, everything has been neatly structured by Satoshi, there is no reduction or increase in the supply anymore and only 21 million Bitcoins.
We will not know what bitcoin will be like in the future, which is certain that he is and also does not need to be worried at all because bitcoin is believed to always increase in price in each cycle it is a very strong belief in our hearts, especially miners, bitcoin will always increase along with fiat money that continues to be printed by the government.
Will not move to PoS it is too much risk and may experience a crash if done like that, I think he is still new and does not know Bitcoin has an amount that cannot be added anymore.
Honestly I wouldn't see any need for anyone to become worried about what will become of Bitcoin in the future, the future is unknown, and uncertainties are abound to happen it will be best we prepare for the best and even the worst to happen, Bitcoin with a total supply of 21million will really prove that the future of Bitcoin will be bright even though there is no guarantee, am also of the view that no additional Bitcoin will be created when the supply has gotten to it maximum of 21 million in circulation.