There was a rumour on zerohedge today that the reason bitcoin bounced back up from $5600 was some big hedge funds deciding that this was the time to buy bitcoin. See

http://www.zerohedge.com/news/2017-11-13/mysterious-bitcoin-dip-buyer-identified

While this big money moves in (perhaps stung that they missed out the $1000 - $7000 rise this year), bitcoin's price is supported.

What happens next depends on whether bitcoin's rivals can gain usage for their coins.