Some 10 months after closing its doors for the first time since launching in 1979, Gates restaurant is re-opening this week under new ownership, with a fresh look and menu. Though no formal word went out about it, New Canaanites descended on the Forest Street institution for a hopping bar scene Monday night, while an invite-only dining crowd filled the newly configured main floor at Gates—complete with a food bar overlooking a wood-fired oven and open kitchen. The bar now will be open nightly, while the restaurant is on track to open for dinner service this weekend (by reservation only), according to Jay Luther, an owner of Gates with fellow town resident Paul Tully. It isn’t clear yet just when Gates will open for lunch—stay tuned. “It’s fantastic,” Luther said of the long-awaited re-opening.