As was rumored to be the case, DHS announced today that the Federal Protective Service (FPS) will be moved from Immigration & Customs Enforcement (ICE) to the National Protections and Programs Directorate (NPPD). The announcement can be found here:
http://www.dhs.gov/ynews/releases/pr_1256829032272.shtm
More information on the NPPD can be found here:
http://www.dhs.gov/xabout/structure/editorial_0794.shtm
"The realignment allows FPS to focus on its primary mission—securing General Services Administration (GSA)-owned and leased federal buildings by performing building security assessments and deploying appropriate countermeasures—while enabling ICE to focus on the smart and effective enforcement of immigration and customs laws."