If Ethereum 2.0 comes out, will that be a new separate coin and will it bring down the value of Ethereum and Ethereum Classic that is currently in Coinbase or Gemini? 
Most of the top smart contract cryptos these days are just forks of Ethereum. I suppose it's possible that at EIP1559 miners fork Ethereum but most people will stick with ETH. ETC doesn't look like it's going anywhere. They were unable to solve their hashrate security problems.https://hackmd.io/@abdelhamidbakhta/eip1559-perf-update#Results
"22 hours non-stop test
6426 blocks processed
41 M gas/block average
More than 12 millions transactions executed
2139 average transactions per block
95% of blocks were at least 15M worth of gas"
This eip greatly speeds up Ethereum and increases the number of transactions per block. Why are miners unhappy?
There are currently 200-300 transactions in 1 block of Ethereum.