REI is the newest tenant to join the party at Pike & Rose, with plans for a 36,000-square-foot store that willreplace its current digs at 1701 Rockville Pike. “It’s going to be a much bigger store, so we’re going to have a lot more opportunity to spread out,” says Carli Davenport, sales manager for the popular outdoor store. “We’ve been waiting quite a while for this to happen.” But the wait’s not over yet: The new REI isn’t scheduled to open for two more years.