I don't agree with your point of view. I think Ethereum will decline with the decline of ICO. There is no such thing that can be surpassed. Replication is not a business, and the emergence of STO will change the cryptocurrency market.
The decline of ICOs are right now just the decline of ICOs on Ethereum, Because ETH is depreciating sharply as a consequence of too many ICO's teams selling ETH worth hundreds Millions of $ which they have raised in the ICOs. This crisis of Ethereum could prove very useful for Byteball becoming a serious competitor as a platform for ICOs.
However despite the fact that the value of ethereum is currently decreasing ethereum still as huge as it is before people are still using it in most of the ICO
and it's kinda seeking unconvenient to move away to a coin that's irrelevant or rarely being used for ICO.