It is noted that a couple of weeks ago, an international working group meeting was held in Houston, which developed a plan for the future flight to the Moon. The issues of technical standards that need to be implemented at the future near-moon station were discussed.
RIA News reports that the relevant agreements of intent between Russia and the United States were signed last year.
From the material:
As part of the negotiations, sketches of future manned missions to the near-moon station were made. Among other things, the possibility of the flight of one Russian cosmonaut as part of the Orion crew, which tows the Russian airlock to the Moon, is being discussed. The Russian cosmonaut will have to ensure on-site integration of the module into the station (...) In addition, negotiations are underway to include another Russian cosmonaut in another crew, but they are in the very initial stage.
RSC Energia confirms this information.