I think that the main problem for $ETH is not the inherent flaws within blockchain. Compared with many other hyped-up blockchains, Ethereum is quite decent. The main problem is that doesn't perform price-wise as was cracked out to be, and with crypto market still being dominated by emotions and short-term profit rather than cold long-term calculations, this might be cripple it for foreseeable future.

I could easily envision Ethereum at next bull cycle at the spot Bitcoin Cash or Litecoin are now - functional, useful, but not "sexy".