It is very difficult to say what altcoins to the end of the year will grow, I'm leaning toward the Eth and NEO, I think the best projects on the market today and they should grow by the end of the year.
In 2013 bitcoin prices went up to $1000+ from around $100. In 2014 BTC prices again came down quite fast like last year and it reaches around $200 in 2015. But again to it has hit that $1000 mark on last year means more than two years time to reach back to previous peak price. If we follow that tread again then we may not see any fireworks in a crypto market this year but it may take more time to see all-time high prices again.