ETH is likely to hit $250 if there's a significant bull run for next year. It's not the ending price due to bull run but it will be the indicator that its about to be there. We will also about to face a hard fork which will improve ETH.

And every time when there's an upgrade(fork) like what will happen to ETH. There's always a rapid movement on a positive chart so ETH might be going there after the fork but we don't know if the whole year will be great for us.