Yes, 2019 will be far better than 2017, as bitcoin adoption is highly increasing as well the demand of bitcoin, theres no doubt that bitcoin price this year will be better than 2017. Im guessing that there will be new ATH on bitcoin within this year.
growth looks fast but the market does not look stronger from 2017. adoption is increasing but not as big as 2017. we can see trade that is happening every day. growth has now just begun. and still need time maybe next year, because for this year I think it will have a shortage of time with growth and some corrections.