This is definitely a temporary decline, in 5 years time when bitcoin is mainstream the price could be 100,000 USD.
I think it's possible to see this as a temporary decline as something similar happened last time with the China FUD.
Right after the entire thing slowed down, the market rose up like crazy and went pretty much exponential. The only issue I see here though is that it's possible that an altcoin takes over from here -- the markets have been doing well in the past and it seems like people are putting their money into alts instead of bitcoin itself. The issue arises with these altcoins which can potentially ruin the success of BTC.