Total exoplanet detection yield from our reference case scenario simulations (D = 2 m; λ = 4–18.5 μm) using the planet classification scheme introduced by Kopparapu et al. (2018) (see Table 2). For comparison, we also plot the number of terrestrial exoplanets within the eHZ as defined in Sect. 2.6 as the leftmost bar labeled “Rocky eHZ.” The bars show the number of expected planet detections, including the statistical 1-σ uncertainty from the Monte Carlo approach but excluding uncertainties in the exoplanet occurrence rates. Left panel: scenario 1, i.e., the search phase is optimized for maximizing the total number of exoplanets. Right panel: scenario 2, i.e., the search phase is optimized for maximizing the number of rocky eHZ exoplanets.