In 2029 BTC will be replaced by new global cryptocurrency. It will be centralized stablecoin, issued by Federal Reserve or another big group of wold biggest banks and corporations. Some FedCoin or so

. It will be fast, comfortable. Payments will be easy and consumers will be happy. Reliably and stability of traditional banking system powered by blockchain technology.
Bitcoin will be used by anarchists (mainly cryptoanarchists) and criminals of all sorts - drugdillers, hackers. It will cost 100-200 dollars or so.