Though ethereum is very potential and it will rise definitely when the market recover from the bear and the bull run start but I do not think it will rise as high as this amount by December because the price is still very low now.
I think everything is possible with this market because as you see right now, the price of eth is falling from a very high level and that seemed like a story that people never thought of but it still happened in awe. And the trigger for this event is still a whale and shark population, they always do things that other people can not predict, so $2500 is still a story that can happen as long as the whales and sharks love it