If they are smart they would offer at least one figure from TDKR this year to capitalize on the movie while its still fresh in peoples minds Nick fury is out and Hawkeye is due to be released soon so Avengers is already represented but nothing from TDKR.
Since the Batman movie was released after Avengers, and since we have been shown those figures AFTER the Avengers figures, I'm thinking we most likely will not see those figures until mid to late 2013 as well.
If they were considering releasing figures while the parent film is "still fresh in people's minds" then we would be looking at more Avengers people in the fourth quarter. However they have already been delayed once and more delays are likely. I bet Batman isn't getting a special rushed release either.
You wont be seeing the Dark Knight Returns figures anytime soon, I'd bet money.