Totally a speculative point, it is impossible to predict if it's gonna jump or not and if it is going to jump then how much. Chances are there I would say, but people are dumping whenever there is a slight bullish movement on the greater side. So, bullish movement like 2017 would be tough and I think it is impractical as well.

You ask a very good question. Of course, no one knows what will happen with Bitcoin in 2019, but each of us loves to dream and tries to foresee the future. For some reason it seems to me that 2019 will be a year of a calm market. Bitcoin will finally gropes the bottom in the region of $ 2,000, then rebounds sharply. Until the end of 2019, Bitcoin will be in the range of $ 4,000- $ 7,000. Of course, I could be wrong, but for some reason this particular scenario seems to me the most plausible now. But at the expense of the market of ICO projects I don’t even know what to think. Now ICO projects are going through very difficult times, and many projects simply will not survive this time.

I guess Bitcoin will be main player for upcoming years, cryptocurrencies are here to stay. Last ATH wasn't unbreakable after strong implusive price action. Latest Bitcoin price boom gave traders good advantage to add profitable positons on trading platform.

I definitely think that in 2019 everything will be fine and we will again be able to earn good money on Bitcoin

 We can hope for Bitcoin to recover on 2019 in  the year 2017 Bitcoin price was skyrocketing rapidly with an unimaginable hike and by 2018 Bitcoin price came as a bubble that is going to burst . Since Bitcoin has the potential for decentralized digital peer to peer currency it can regain back to a hike and there seems many possibilities in Bitcoin by the coming year . Since Bitcoin is driven with several financial speculation there is scope for a rise in value .

Unfortunately Nostradamus is not online to answer to your question 😊

We are still in a long bearish trend since almost an entire year. As market's trends are cyclical, the history says that bulls will come back sooner or later, but nobody knows if this will happen in 2019.

do you know the saying " history repeat itself " ?  if ever that happens , well there are two instances . the price can still become dump just like what happened this year or the price can pump just like it did on the year 2017  .   

however , i heard recently about bakkt thingy where it can greatly influence the value of bitcoin .  as well etf/sec approvals  .  so with said ,  i think there is a huge chance that the market will boom on 2019  .

Guessing on 2019 is going to be very difficult. But if the Bitcoin price isn’t going to up to 8k or 10k in the next 6 months.  And the crypto world isn’t going to see a new cash inflow. Then we will see a series of lay off in the crypto world, and old ICO selling even more ETH and other crypto holdings.
For Bitcoin I think we are close to the bottom, but for many Altcoins, especially among  the older Altcoins I think we will see the crypto winter continue in 2019

No one can tell you that bitcoin and other crypto currency will recover this coming 2019, but if we all help to support crypto world and do not listen to fud it might help a lot.