I think this
article addresses most of the misconceptions about the upcoming Eth 2.0
- “Eth2 will never launch”
- “The transition to Eth2 makes Eth1 immediately deprecated”
- “There will be two ETH tokens from the fork”
- “All Eth2 decisions are made by Vitalik”
- “Eth2 is a catch-all fix for the challenges of Eth1”
The most common on the list is that eth2 will never launch. Note that in the recent AMA with the eth 2.0 team which includes Vitalik, one of the devs is 100% certain that the phase 0 will be launched this year but no month has been disclosed. In case eth2 won't fully launch, at least the first phase will be done.
Another misconception that can be added I think is that ethereum will need to get approval from the SEC before they can complete the upgrade. That, of course, isn't true.
Note: Please read this
article first before commenting.