I doubt if I will ride as many miles after I retire because my commute distance is so long (32 miles round trip) and about half of my total mileage is from commuting each year. However, I still plan to do a lot of riding and more bike tours than my current two or so each year. I have averaged well more than 8,000 miles/year over the past 6 years, and slightly more than half of that mileage was from commuting.

The wild card for me is that I would like to ride across the USA after I retire, if I can talk my wife into letting me go, and don't talk myself out of it in the meantime. The shortest route is the Southern Tier, which is about 3,600 miles if I recall correctly, and longer northerly routes are 4,500-5,000+ miles. I am going to ride 1-2 loaded tours in the coming year and use that as a guide for deciding whether I really want to do that for 2-3 months on end.