What do you say of the new ST20-token based call Polymath? Will it succeed? Will it follow Ether's steps or is it better? State you ideas and make a discussion.
https://www.polymath.network/wizardEven if Polymath manage to offer something more to ICO owners than ETH, it will take more than 1-2 years to move even close to ETH market cap and adoption.
So, no - not in 2018 or 2019.
Not even in 2018-2019 as you said. I suppose it will never happen. Ethereum is the coolest platform, and millions want to have ETH coins in their wallets and deal with this crypto. Polymath is still unknown.