Of course, a lot depends on what your final path reports show, but I would be thinking in terms of 3-6 months, not a year or more. Unfortunately, when you had active inflammation, it would not be a good time to check for dysplasia, since it is difficult to tell the dysplasia of inflammation from that of precancer. Plus, with your additional PSC diagnosis, your cancer risk goes up, as you know. While colon cancer may be slow growing, it may be there undetected, as they cannot biopsy the whole thing without removing it.
Soon, you'll get more specific recommendations. You can get another opinion if that might help.
Jan 