I've hit this topic below, and it does seem to be becoming conventional wisdom that just as the 2010 election was a reaction to the 2008 election, so will the 2012 election react against 2010:
The one sobering thought that veteran Republican consultants are already contemplating is that the larger the wave this year, the more difficult it will be to hold onto some of these seats in 2012 and 2014 in the House and 2016 in the Senate.
The bigger the wave, the weaker the class and the harder it will be to hold onto those seats. Democrats only have to look at their 2006 and 2008 classes for plenty of examples.
What this means is that we will likely have our third wave election in a row this year, and the bigger this one is, the more likely that there will be a countervailing wave in either 2012 or 2014.