It's not that is hard to predict it. Market movement has pattern and this happening now to ethereum is not shocking cause the TA show that it will increase up to 500 up to May 2020 if the surge is continously in this level. IMO, the current level will continue to its support, as you can see the resistance is quite strong.
I don't think that the Ethereum price can continuously rise at the same pace until May. It will rise to $300 if we are lucky and then it will drop back under $200. People are getting excited by this market movement in the past week or more, but this is not the start of the new bull run. Regular fluctuations in cryptomarket, I will sell if it comes to $300, top can't be far from that.