- VenSAR, an S-band phased array SAR antenna, currently under science, technical and programmatic assessment
- SRS, the Subsurface Radar Sounder, inheriting experience gained with MARSIS and SHARAD
- VenSpec, the Venus IR emissivity spectral mapper and IR & UV spectrometers, building on the success of VIRTIS and VMC on Venus Express, UVI on Akatsuki; and with heritage from NOMAD on ExoMars and SPICAV/SOIR on Venus Express
Radio Science and Gravity Experiment
- Radio Science, 2-way mapping, radio-occultations, gravity field, love number k2
Further payload to investigate complementary and more subtle atmospheric escape-related science goals may also be included, subject to spacecraft resource availability, funding, and competitive selection.