It will still be bitcoin year. Why would any other coin be the year of that coin? I do think that bitcoins will still go up in the next years as basically it is not done yet going up and it will not stop here. Bitcoins is not yet done, it has not even gone mainstream and look at where it is now. Imagine if it would go mainstream and would be used in a lot more places than just online.
2017 was Bitcoin's year, 2018 is another year for a successful and progressive bitcoin. Bitcoin has another year to to pursue the mission and vision goals, and the people are continuing believing bitcoin.