We know it feels unnatural, but come September, we predict you'll occasionally leave Newbury Street for your habitual weekend shopping sprees. Natick Collection, the luxury development that's slowly taking over the Natick Mall, is set to attract more than just suburban ladies who lunch. Retailers taking up residence include Louis Vuitton, the area's first Zara (the Spanish answer to H&M), department-store giant Nordstrom (finally), plus other upscale shops such as Stil, Tiffany & Co., BCBG, Stuart Weitzman, Betsey Johnson, and Neiman Marcus. For city folk looking for shopping sustenance, Sel de la Terre and Finale are also opening in the Collection.