TrailManor is in production, but few units coming off the line at the moment. The company was sold, and the new owners are taking it slow, to make sure they get the process correct.
There are used TrailManors on the market. A good place to look is the
http://trailmanorowners.com/forum/TrailManor Owners' Forum.
I loved both TrailManors I had. However, they are 3-season, not 4, and I wanted a 4-season. Had to go with a conventional trailer to get that. I miss the TrailManor, especially in fuel economy and ease of towing.