I am hoping that after some issues irrupted on the fourth quarter of 2017 with Bitcoin and Ethereum can now be fixed this year 2018 for us to be able to use them without hassle and they will be great again. Based on my observation during the last quarter of 2017, 2018 will still be good for Bitcoin and Altcoins If only devs has to upgrade its system because as what I can see with investors they are shifting from one specific coin to another when they spot something is going on with it's system maybe because they don't want hassle or conflicts with what they are doing most especially traders. Aside from Bitcoin and Ethereum I can also see that Litecoin, Ripple and Monero will skyrocket this year just a speculation but it could possibly be happening to other coins too.