It is not certain that ethereum 2.0 will affect ethereum, which is more influenced by the movement of bitcoin.
once knew that ethereum could move forward on its own ability but could not be long and was able to defend itself.
almost all altcoins are currently dependent on bitcoin movements, it is very real and clear as is ethereum. ethereum to drop to $ 80 is very unlikely. but the good news is that bitcoin is currently holding up well in the $ 9K range so that all altcoin is safe, it is estimated that next year bitcoin will slowly rise and lead like 2017 and maybe more, so ethereum rises also because of the impact.