Change is in the air at Potomac Woods Plaza, where several empty spaces are about to fill up. First to arrive will be Ricky Alessandro Salon, opening this fall in the former Studio Ten 83 spot near Starbucks. Next up: Baskin Robbins, relocating from Cabin John Village to the former Ibhana space. The third newcomer is fitness center F45, offering high-intensity interval training in the former BB&T bank building. Opening date TBD.