When Jonathan Burden announced it was leaving Duane Street, the word was that a fashion company was taking the space. I was afraid it would become all offices, but good news: There will indeed be retail. The PR firm Williamson intends to use the lower floor for showroom and offices, with a rotating retail experience on the ground floor. Staffer in there now working on various things, but the official opening won’t be for at least a couple of months.