I don't think we will have that bull run so soon. I think with the ETF decision made by SEC (they have time to decide until 29th december) will have a positive affect on 2019. Normally SEC declines and returns all asks right away if they do not even consider it, which means if they haven't rejected it right away says they are thinking about it.
I am not saying they will accept it but I am saying they are considering it, which is better than rejecting right away. That is why if they say one ETF is alrigth at 29th december or couple days early the price of bitcoin will start to rise again at early days of 2019. I have no hope left for year 2018, it has been a stagnant year and will continue to be so, there will be some ups and downs along the way but nothing major and will finish the year like this.
In my opinion we cannot predict the price of Bitcoin this year like previous year because market is not in a stable state and we ETF till 29th Dec to decide based on demand and investors interests. Hoping the best price for BTC to come up in the coming year.