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.