I am confused that there are meme coins whose prices are sky rocketing but I dont see any real value these meme coins are providing

I prefer NFT Talk Show (Podcast  By Tony Payne)

My questions is that ' is there any possibility that some point in time in future BTC community might decide something which can retrieve this lost BTCs?

I think Security Token Can Pivotal Role Here, As In Security Token You Can Tokenize Physical Asset. Security Token with abides government regulation so its easy for investor to trust. It helps company to easy liquidize their asset like real asset. It also helps you to raise fund.

Apart from that any individual can raise fund and liquidate their asset by tokenizing physical asset e.g ART, Music etc...

Will Bitcoin replace the global currency, or will it replace gold (as a reserve )?

Yes, India is going to release its own digital currency. The point is that it will be more likely to work like a stable coin. So will this stablecoin be backed by government assets or just work like they print Indian currency in paper format?