Sorry to hear that you will need this surgery, but glad to welcome you to the Forum.
Your question is not a simple one to answer. What you might expect depends on so many factors. What type of diversion is your urologist planning to do? Your overall health and condition prior to the surgery.
It is major surgery and there is quite a recovery time, as well as training for the "new normal."
The MOST IMPORTANT FACTOR IS THE EXPERIENCE OF THE SURGEON. This cannot be stressed enough. There are a lot of discussions under the Forum topic
"Invasive" below. One recent one that may be of interest to you is