The Call of Duty: World at War Forums have a status report from Treyarch on the PC edition of the third map pack for the World War II shooter sequel saying it will be released with an upcoming version 1.6 patch (thanks VG247). Here's word:

As with the previous two Map Packs, Map Pack 3 will indeed be coming to the PC – the team is hard at work on it and I’ll let you know when it’s in test.

As such, there will be a Patch 1.6 as well, which will address some additional game issues. When I have details on what else will be included in the patch I will be sure to post them.

We appreciate your patience as always, and look forward to its release as much as you do!