Mass adoption is just a dream however huge price increase is something that bitcoin can conquer, remember that this coin worth few cents and now worth almost $1000 so sky's the limit for the price. About the adoption, I have my doubts about where we can go.
Mass adoption does not mean everybody has to be involved, a great percentage of it is all that would be necessary. Already we are seeing increase in the number of users and market capitalization has been quite progressive, those are steps in the direction of mass adoption.
Huge price increase is a function of mass adoption and the value of any coin depends on its user base, which can be seen as its acceptability. Without good enough user base - buyers and sellers, huge price may never happen and if it does, it would be transient, because there would be no basis to hold it out up there. That bitcoin have risen from few cents to hundreds of dollars is all because there is increase in the number of people demanding it.