With Brexit being actually successful, and France & Co. also wanting to leave, this is going to cause major instability and maybe something that ISIS or North Korea is waiting for. Then the problems will start. 
i doubt that big problem might start happening in my opinion, those are just some world problems that are happening all the time i think and no one can say that it will have impact on price or noti think there might be a big crash incoming to be honest and i think that the price potentially might fall a lot in the future but i doubt that this will happen during the halving time