There was a study done that compared the shapes of CIS, dysplasia, and normal urothelium cells. They concluded "Dysplasia, which is a somewhat ambiguous lesion, overlaps in its measurements with those of benign urothelium. The most useful morphologic parameter is the mean nuclear area of the 25% largest nuclei; CIS nuclei are approximately 5 times the size of lymphocytes, whereas normal urothelial nuclei are only 2 times the size of lymphocytes."
My point is that the diagnosis of dysplasia can be subject to human interpretation (unless a fancy image analysis system is used). If it was me, I'd talk to the pathologist and get the details of his diagnosis. Your inclination for treatment may change depending if your dysplasia is more (or less) like normal cells.
Your initial diagnosis was CIS (high grade) plus papillary (grade ?). The eventual long term outcomes (15 years) from another study (the initial treatments for these patients who had high grade cancer were BCG and/or TURBT) showed that just over 50% of cancers progressed during the follow-up period, 36% required cystectomy for progression or refractory CIS, 34% of patients were dead of blc, and 21% developed upper tract cancer.
Of course, these results can't predict specific outcomes, but they are pretty good guidelines.
Dan