Seeing the polkadot ecosystem and the improvements that the team has been putting into work, I see that polkadot got a bright future.
Agreed, Polkadot being used an alternative chain for ethereum and this platform is fixing all of problems that faced by ethereum. Polkadot is also being created by the good team and the majority of people in these groups have experience in blockchain development.
I do believe if polkadot could be the alternative but this chain is not so potential as BNB.