Thanks to @MacsLocalBuys, who tipped me off via Twitter that a new barbecue joint is opening at 4904 Devonshire Avenue in the city's Southampton neighborhood, next door to Lily's Mexican Restaurant (4601 South Kingshighway Boulevard, 314-352-1894).
Signage in the window advertises the restaurant as Wilson BBQ. A construction permit posted on the front door identifies the owner or agent as a Debra Wilson. That's about all the info I've been able to turn up so far.
A peek inside reveals an interior that either has been renovated but not set up and decorated, or that is the remnants of a previous tenant that has yet to be renovated.
More, as always, as we learn it.