If I look at your question, it will be very difficult for EThereum to be able to bounce back like last 2017, but for the current increase all this shows a positive thing because prices in 2017 will be repeated this year but note that Bitcoin prices continue to soar.
Ethereum had a huge correction in 2018 and could see it as the worst period of this coin. I think Ethereum will soon return to the most stable stage and let's wait for what will happen next at this coin because I believe this year everything will be different and we can still invest in ETH at safe price if you have long-term investment needs. Anyway, this is still the second coin ranked on CMC and we will still earn good profit if the market enters the uptrend stage.
A lot of people really believe ETH will pumped again. Although it is have big chance to realized, ETH still need time to reach it's peak again. And for now actually good to buy some of it. Not promoted, but i just said what i do.