Price of anything falls, when there is immense of a selling pressure and Coming to Bitcoin prices and most people are long time waiting for fork and as many are expecting that the prices will be come over down after fork but as soon as it come down buying pressure will increase and it will rise again and Also fork happens too many time in the near year and doesn’t affect Bitcoin value in long term even in 2019
The only thing that will affect the Bitcoin price in near of future is that any of the country posting a ban on Bitcoin. Then it just like China did last months and it shattered the price of Bitcoin then In near future there is not all yet major announcement by any country on Bitcoin legality status in 2019.
Third and most importan and the most concept of bitcoin is unique in itself, where any ban, any legalisation will be not work unless buyers and sellers keep demanding.
For your satisfaction you can read this below....
the answer to What will happen if my country bans bitcoins after I buy bitcoins?
Also Bitcoin may end but not its idea some other crypto currency will come there.