The New York Times sees increasing support in Congress for a ban on high-capacity magazines:

While influential lawmakers in both parties view a proposed ban on assault weapons as politically toxic, lawmakers seem increasingly open to a ban on high-capacity magazines, like the 15- and 30-round devices that have been used in shooting rampages from Aurora, Colo., to Tucson, where Congresswoman Gabrielle Giffords was shot in the head, to Newtown.

"These proposals deserve a vote," President Obama said in his State of the Union address. But there's no sign in this article that a Congressional vote has been set on this particular question—yet.