The Polish have a website where it is possible to see their updates in their 2010/2011 winter expedition to Broad Peak. They have given detail of the route that they are going to take. Their aim is to be the first expedition to climb an 8000m mountain in Pakistan. The expedition will go from December 2010 to March 2011.
In the article there was no word as to whether they were still going to attempt K2. At this stage it looks like their planning is for Broad Peak, and are less likely to make a serious attempt on K2. Though with the expedition lasting till March 2011 then there could be time to make a challenge on K2.
Source: Polish Himalaya