Studying the host galaxies of high-redshift quasars provides vital insights into the early growth of supermassive black holes. Here I show predictions for the properties and environments of z=7 quasar host galaxies using the BlueTides hydrodynamical simulation. I focus on comparing currently observable quasars to those discoverable by the Roman Space Telescope. RST will discover fainter high-redshift quasars with less extreme host galaxies. RST quasars will be ideal candidates for follow-up observations with JWST, to detect the host galaxies in the rest-frame UV/optical for the first time.