“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,” wrote a Treyarch dev. “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.”
When he will have further details, we’ll post them too. Until then, all we can do is wait and keep getting better on the older maps.