If significant progress is made and mining becomes widespread, demand will increase automatically.
demand for bitcoin will increase when bitcoin becomes popular. at this time the demand for bitcoin might be reduced because so many negative news spread. further development of bitcoin will most likely make the request increase.
Demand fr bitcoin is decided upon its popularity and also bitcoin is becoming more popular means it is becoming more useful for anyone in the world and that can be only gain by adapting into businesses and other essential processes in business and general areas so the number of users will increase and with that its demand will increase