Yes, it's possible, until December 2018 Ethereum could reach 2500$ or maybe until the middle of next year. Now Ethereum is falling and will have to wait a lot until it increases.
Nothing is impossible in cryptocurrency but I doubt if it can reach the $2500 value this year. It is not highly probable to happen knowing that market is still down until now. My guess is that by end oif the year, ethereum might be $1500 and not the $2500 mark.