As we've been reporting, this will be a second outpost of Sunflower, the cafe serving breakfast-brunch on Third Avenue between 24th Street and 25th Street.
There's some Sunflower neon signage up in the back and this very visible "You had me at... Brunch!" sign...
Sunflower is owned and operated by the same folks as the previous tenant here, Eros, the Greek restaurant that quietly closed in August 2022 when a "temporarily closed" sign arrived on the front door and stayed for 16 months. Eros took over for their diner concept, The Kitchen Sink, in September 2021
We didn't spot any signs reading "It's Brunch O'Clock" or "Go Ahead, Mimosa My Day!" or "What Happens at Brunch Stays at Brunch."
Thanks to Eden and Steven for sharing photos from here!