I doubt that there will be a new high in 2018, maybe in 2019 but this year has been a mysterious year for all of cryptocurrency.
There is mostly no body who expected it to hit the height it did last year and yes, that doesn't mean we should expect same this year but you can never tell. So let us not conclude on it yet.
I will go step by step. The way ETH is moving I think we should see 300 by Oct first week. I will not bullish until ETH goes above 400 USD.
I expect between 280 to 300 by this weekend though. It did almost a similar movement last week an got to 240. I may be wrong but just stating my view