This week’s effort by a quartet of former Washington heavyweights to “jump start” the debate over the future of Fannie Mae and Freddie Mac in the form of a new, but familiar, mortgage reform proposal put GSE overhaul back in the headlines. Industry observers say that’s a plus, but it remains to be seen whether it will ultimately affect policy change. The Bipartisan Policy Center, comprised of former Republican and Democrat lawmakers and cabinet officials, issued a plan calling for the phasing out of the GSEs in favor of a new federal entity that explicitly acts as a backstop of last resort after the private sector.