I would call it the year of PoS. More and more altcoins are being created as PoS or PoW/PoS hybrids and we,at Staking.com, predict that PoW will be a thing of the past in the near future,and righly so. The advantages of PoS are becoming more and more visible and the shortcomings of PoW will lead to its downfall. If you consider investing in ASIC miners you should think about it thoroughly and maybe invest in a stakeable coin or even a Masternode instead, which will pay off a lot faster and you won't have the urge to cry every time you see your electricity bill. We would recommend investing in ETH (because of the transition to PoW/PoS) , EOS (DPoS is a great innovative concept and if Dan Larimer can pull it off, the price of EOS can rise X2-3 by the end of 2018 or Q1 2019) and VeChain (great concept,upcoming Masternodes and world class team).
Hope this help ! Good luck to all !