As a country the US has just taken on a huge debt to “bail us out”. With the “bill” for the bail out and the remaining boomers retiring, I doubt we will do more than a few snatch and run missions. There is just no benefit to the country at large to justify the huge cost for long stays on the moon. So don’t expect to see NASA hyping their Moon Condo anytime soon.
This is about a year old but here is some iformation that ILC Dover did on a prototype Lunar habitat. It was field tested in Antarctica. This is sort of a new/old design. You might say some of the inflatable quonset designs go back to Heinlein's fiction. Some designs and sketches I saw about 15 years ago had inflatable huts in a trench. Supports are then put over the hut and regolith is shovelled or bulldozed for extra radiation protection.
In general I don't see lunar station modules differening substantially from those alreay used on space stations or carried in the Shuttle payload bay. Apart from being adapted to work in lunar gravity of course.
One I see would be while attaching two modules. You have to avoid stirring up the dust. That stuff is abrasive and magnetic. While there might not be air to hold the dust up, the lack of strong gravity would have a major impact there.