Various bitcoin bulls have doubled down on their price predictions.
Most of the hyperbullish predictions of $25,000 to 100,000 prices for Bitcoin by the end of 2018 are based upon institutions moving in and the SEC approving ETFs for trading. So far there have been two rejected Bitcoin ETF applications by the SEC.
There is also the estimate of the increasing costs for mining Bitcoin to put a floor of $14,000 to $64,000 for Bitcoin in 2019. The prices for Bitcoin have historically tracked the costs to mine new Bitcoin.