of course, it will be the same coin, but it will have a different mining algorithm. if now the ETH network is supported by miners who use the POW algorithm, then in ETH 2.0 will be used POS, which will support the network by freezing a certain amount of coins, specifically, as I know, 32 Ethereum. I think that after this update a lot of people will be upset
what you're saying is true, people who want to POS ETH then they at least have 32eth but here the one who is upset is that investors don't have the ability to get 32eth LOL, but wait a minute I haven't heard the POS reward !?
32 ETH = More $ 4000 with the current price, and with the expected profit of PoS, I see it's like a lending fund. It also means that requirement: 32 ETH is reasonable to participate in Staking. In my country, savings deposits in banks have an interest rate of up to 8% / year. So, maybe it's normal for me.
You could check it more details through here:
ETH 2.0 Economics