GRAND RONDE — “Bingo will make a triumphant return,” announces Greg Fritz, marketing manager of Spirit Mountain Casino. The casino, which has about 3 million visitors a year, is adding 135,196 square feet. The addition will open in late summer 2008. The $40 million expansion will create a larger space for the Coyote’s Buffet, a bingo hall, conference rooms, offices and a performance space for concerts and comedy acts. The youth activity center and parking lot will increase in size as well.