I think all of us have different perspective and prediction through up coming 2018 , for all of us maybe we predict that it will increase more , and some are decrease , there are pros and cons. But for me is yes positive that the bitcoin value will become vast , increasing more and more , but we can't assure though , still it depends on the demand of the marketplace because of the volatility of it. But as for now the bitcoin value is still increasing , it's unstoppable though.