"future policymakers may wish to explore the possibility of purchasing a broader range of assets. Beyond that, some observers have suggested raising the FOMC's 2 percent inflation objective or implementing policy through alternative monetary policy frameworks, such as price-level or nominal GDP targeting. I should stress, however, that the FOMC is not actively considering these additional tools and policy frameworks,although they are important subjects for research."
She mentioned borader range of asset, maybe like european central bank's corporate bond purchase. But she stress these new tools are not "activively" considered.