If Obama wins, I expect the right-wingers to double down on their Obama derangement syndrome and do much more whining than they have in the past four years.
Maybe people but not those in office.
I get the feeling that if Obama wins the Republicans in Congress are going to become much more willing to work towards compromise and start getting things moving again through Congress. The hard line stance to make sure Obama accomplishes nothing and isn't re-elected won't be necessary and their own jobs might be on the line if they continue with an attitude of not wanting to work with Democrats.
Heck, with an Obama win, the whole Republican Party might be looking at major change to ensure they can relate to more moderate and independent voters. A step away from the hard right stances, platforms, leadership and Presidential candidates could be in the future over the next four years, if Romney loses.