I have doubts about x10. Now there are many competitors ETH. They take ETH market share, which will affect the total capitalization and the price of ETH, even in bullrun.
They said that the new ETH is BNB, because it's the most demand coin recently due to the success of IEO.
If ICO will come back alive, then maybe we will also see the demand of ETH increase.
However, I am not limiting this as my basis of success for ETH as they keep developing the project and it would help for the value to increase.
It was posted here a few pages back that BNB will not have smart contracts. Not sure how accurate that is but if it is true it already means BNB cannot take any of the ICO market from ETH.