ETH vs ETH 2.0 staking

Hi there,

First of all, sorry for posting these questions. I imagine that they have been addressed before many times.

I would like to understand the following

1.) ETH stakers are currently receiving ETH2.0 tokens. Once the ETH 2.0 network upgrade is done, are the original ETHs going to coexist with ETH 2.0 ? or will they be automatically swapped to ETH 2.0?

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2.) Also, am I right asumming that ETH 2.0 tokens will have the same $ value as original ETH tokens or will they have a differente $ value?

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3.) After the ETH 2.0 networkg upgrade, will still be possible to stake the original ETH tokens in the network?

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Thank you