I think for the year 2018 will be a lot of surprises for us. The increasing number of Altcoins that appear, making the world more diverse crypto. And this will definitely lead to the abundance of Altcoin usage for day-to-day transactions (Only possible). Yes whatever we hope for the best.
Indeed the year 2018 will be the year of crypto revolution and i am sure as there are some great altcoins making buzz from quite a few months and also on the other hand we have altcoins like Ethreum and Litecoin which can be a game changer in the year 2018 and to say it in another way as we have noticed the growth of altcoins which means that more number of people are opting for crypto currency which will indirectly increase the transactions and pool more new users to crypto world and lead to increase in it's demand which will eventually lead to increase in it's value.