The rut is pretty much the same time every year. The muzzleloader will be getting the post rut like always. The one advantage is some extra bulls may have made it through. I was out this past weekend and the bulls were still going good (like always this time of year) but I expect it to fizzle out over this week.
This season was a perfect example of the rut "seeming" non-existent due to weather, but I can almost guarantee the elk were taking care of business.