In 5 years i see Ethereum as the still one of the main cryptocoins, with atleast 10x bigger market cap than it has today. There are so many real world uses coupled with so many developers building on top of it... The future is going to be insane for Eth early adopters!
Now it should be in my opinion at least 1000$. So it is like spring - should just explode oneday! We saw this when it go from 11$ to 300.$
The bitcoin price is also increased very slowly. But suddenly an unexpected increment we saw in this year. i think no one expected this increment in bitcoin price. Like this ETH also now stable at $300 one day it will cross suddenly $1k this is guaranteed but when it will cross that i am not sure we have to wait for that time. In 5 years 100% it will be in good position.