JAXA has published a summary of the three lunar exploration scenarios the ISECG agreed to investigate between now and mid-2010 as part of the ongoing multi-lateral lunar architecture study that has seen lunar architecture workshops conducted in September and October last year and February this year. Under the Lunar Sortie Mission Scenario summary it says
The main characteristic of this type of mission is that the crew lives out of the NASA Altair lander (or another human lunar lander)
But one assumes that if you can live out of a lander for a week it can also transport you to whatever outpost is established and help with logistics
I’ll be talking to the space agencies about the ISECG exploration scenarios over the coming week, hopefully, so expect more soon