Excerpt from the document:
“Soviet statements indicate that the Soviets are planning a manned Mars mission from which they hope to derive world acclaim and prestige. Because all the technologies needed for such a flight have not yet been perfected, the Soviets have not committed themselves to a launch date. Our strongest, current indicators of Soviet plans for a manned mission to Mars are the long-duration stays in space by cosmonauts and the Soviet program to develop magnetoplasma dynamic thrusters for long duration space propulsion.”
In March of 2018, The Black Vault filed a Mandatory Declassification Review (MDR) request to have this previously released record re-reviewed for further declassification.
What is interesting is that although nothing new was revealed, there continues to be numerous redacted pages.
Soviet Plans for a Manned Flight to Mars, May 1985, 2010 Release [16 Pages, 3.5MB]
Soviet Plans for a Manned Flight to Mars, May 1985, 2010 Release [12 Pages, 0.8MB]