The future of bitcoin I think will be more accepted by the public next year because blockchain makes it easy. The quantity of bitcoin will increase and prices in 2019 will be stable. That is possible.
This year the blockchain is being studied in many countries to apply in many fields. As a result of development, bitcoin will get more attention. Price will be unstable because it will increase nonstop.
Well once people understand more about bitcoin and crypto, acceptance and adoption would considerably grow. And we may see a couple of runs like that of 2017. Though i wouldn't mind if the market takes it's time getting people's understanding.