I think it depends on bitcoin destiny. If bitcoin hard fork will success then ethereum will lost his price a lot. Because now ethereum price grows up so fast because of fear before bitcoin hard fork of some investors. My price is between 1,500-3,000$. When bitcoin price should be not less then 10,000$. I am very optimistic 
I think you need to be ready to see Btc around 10,000 $ in the end of 2017
I don't think that he so will grow up in such short terms, the price can and will be such but not earlier than in a couple of years.