the next regular season matchup between the steelers and 'skins will be 2012, but they do not alter sites. homefield will be determined by previous years records.
NFC v. AFC match-ups do alter sites every four years. Specific inter-conference division match-ups alter sites every three years. These match-ups and locations are based on patterns by the NFL Schedulers, not based on previous season's record.
In 2002 & 2006, Pittsburgh played the NFC South.
2002 - ATL, CAR @NO, @TB
2006 - @ATL, @CAR, NO, TB
In 2003 & 2007, Pittsburgh played the NFC West
2003 - STL, @SEA, @SF, ARZ
2007 - @STL, SEA, SF, @ARZ
In 2004 & 2008, Pittsburgh played the NFC East
2004 - @DAL, PHI, WAS, @NYG
2008 - DAL, @PHI, @WAS, NYG
In 2005, Pittsburgh played the NFC Central
2005 - @GB, CHI, @MIN, DET
In 2009, the Steelers NFC Central matchups will be GB, @CHI, MIN, @DET
Following the established pattern of the NFL schedulers, the Steelers 2009 Schedule opponents would be as follows:
NFC North - GB, @CHI, MIN, @DET
AFC West - @DEN, @KC, OAK, SD
Each team in the AFC North twice (Home/Away) - BAL, CIN, CLE
AFC East & AFC South same place finishers as Steelers in the AFC North.*
The Redskins 2012 Schedule opponents would be as follows:
AFC North - @PIT, @CLE, CIN, BAL
NFC South - CAR, ATL, @NO, @TB
Each team in the NFC East twice (Home/Away) - DAL, NYG, PHI
NFC North & NFC West same place finishers as Redskins in the NFC East.*
* - These two games locations are decided based on previous season's record.
The following link from ESPN goes back to the 2002 season and shows the pattern that each team in the NFC will play each team in the AFC at home every eight years. It also will show that the inter-conference division match-ups show the pattern that every team in the AFC will play each other at home at least every six years.
http://sports.espn.go.com/nfl/teams/schedule?team=pit&year=2008