I wouldn't count on it, 20something. I foresee in our lifetimes only better and more effective ways of applying minoxidil-type solutions onto our collective heads. They will never cure male pattern baldness, just as they will never cure wrinkles for women. Genetics is genetics, and trying to mess with it will only cause further problems.
I still believe that the ultimate solution will be a substance that, when taken in pill form, will displace DHT in the receptor sites on the follicles (similarly to how immunosuppresants protect transplanted tissues) and allow follicles to grow to their full glory without interference from DHT.
Mark my words, right here... THAT will be the answer.