I predict Ethereum will be between $380 and $400 before the end of 2017.

For sure it will grow in terms of price. Next target 400$ in 2-6 months maybe.
Ethereum will surely rise again though it takes time to go up. There are many who supports ethereum and invest. So , I think price will go up.
Even me I trusted Ethereum as I converted all my bounty tokens into Eth coins and never cashed out since the beginning because I fully support Ethereum all the way until today. I am a proud investor of Ethereum and soon will be pump hard to the top, next year would be the year of Ethereum. Hopefully and looking forward.