For patients who are reasonably fit and have localised disease on scanning, then cure is a possibility. It is impossible to give an individual patient an exact timescale, and hard to generalise information applied to studies of hundeds or thousands of patients.
The prognosis depends partly on the stage of the disease and how well the tumour responds to treatment. Many doctors will give a percentage probablilty of survival after a certain time period. However, one does not know how well a patient will do until after the treatment is given and some patients will be cured and some will suffer a return of the diease soon after the end of treatment.