Sort of. There was a flash-forward in one episode of Enterprise. We saw part of a corridor with a window. One of the starship calendars had a more detailed version of the schematic/illustration that appeared on a panel of her wall.
Still, we know so little about the J, or the technology of the day, or the technology of the days around the day, there's nothing that could really go in there about it.
Still, we know so little about the J, or the technology of the day, or the technology of the days around the day, there's nothing that could really go in there about it.