The Future of High-Energy Astrophysics: Prospects for Supermassive Black Hole Discoveries

I will describe a few of the most exciting prospects for learning about the physics, demography, and ecology of growing supermassive black holes over the coming 1-2 decades. Facilities that are largely built (e.g., ALMA, EVLA, NuSTAR), are under construction (e.g., Astro-H, e-ROSITA), are expected to be built (e.g., LSST), or will hopefully be built (e.g., Athena, JANUS, LISA-lite) should enable wide-ranging discoveries about the high-energy processes in active galaxies. They will also provide strong connections with the enormous and still growing data archives from current X-ray and gamma-ray missions.