On Mar. 7, 2013, the President signed into law the reauthorized Violence Against Women Act (VAWA). The reauthorization contains some expanded protections for immigrants, but did not increase the number of available U visas. The law includes new provisions on stalking, children of self-petitioners, children of U visa applicants, immigrants engaged to citizens, and funding for law enforcement to fight trafficking.
The text of the reauthorization passed by Congress at http://www.immigrationadvocates.org/link.cfm?21056.