It will go down to $3215 and if it falls down, it will go under $2800, but it probably go up from $3215, and we expect Lighting to make more exciting news (In middle of January), and people maybe actually start to use it, and then we can expect real "price jump". Until very good news, there is no good reason for BTC to go up.
On 3 of January, there will be "Proof of keys", that means that people will withdraw their BTC to their own wallets, and the BTC will not be on exchanges, so will that make the price go lower, or higher? I think it will make the price go lower because people are scared of things they do not understand. Now, all it is left to see what will happen.