Hi Paul
The first question is whether this will be a hysterectomy, remove uterus only, or whether they'll remove more. Tho it's got another official name, women who have everything removed (uterus, cervix, ovaries, tubes) often call their surgery a "total hysterectomy." The reason for the question is that the more organs that are left behind often equals more problems. If they do the infamous "leave one ovary" trick, they'll be coming back to get it out in a few years. More surgeries = more scar tissue & adhesions = more problems down the road.
Sadly, there are no guarantees with endo. I had a total hysterectomy at 27. After about a year of some intermittent pain, i had 26 great years. At 54, endo came back & i needed a bowel resection. That was 10 yrs ago. I'm having some problems now, might be endo, might be all the adhesions, might be my colon at the resect. Problems aren't that bad & i can't have another big surgery so I'm ignoring it.
Other women don't have as good a result as me. My personal suspicion is that docs can't see as well with the cameras as with their eyes, especially when it comes to trying to check all the intestine for spots. All i know is that those of us who had hysterectomies back when they were only done via large abdominal cuts had better outcomes. Of course at that time they also removed spots only by cutting them off rather than burning them; many women here have a strong preference for cutting off the spots that are on organs which must remain.
Laparoscopy makes the outer healing easier. There will still be the post-surgical discomfort of having things removed, and from all the gas they pump inside during surgery. Your wife has been thru the latter already when they did her diagnostic lap. It will be worse this time: longer surgery, more things to take out, more gas needed.
As to the rest of recovery, all i know is that it gets a bit more difficult with each passing decade of age earned at the time of the surgery. Even when all those little cuts heal there will probably be inner discomfort for a while. The remaining organs must adjust to a new arrangement after 45 years in the original model. That passes off with time.
One tip from my surgeon: she should wash her entire front with antibacterial soap for 3-4 days before surgery. This is the only time that kind of soap is allowed in my house.
One thing's for sure: your love & loving presence will make it all so much easier. I wouldn't have survived that bowel resection (&infection) without Himself.
Hope all goes well.