This week in the Retail Roundup, CoStar reports on expansions or new concepts at Buffalo Wild Wings and Life Time Fitness; new retail development news in Denver and Pittsburgh; acquisition, merger, loan, sale, or IPO activity at Centro, RK Associates, and Hocker Group; closings, cutbacks, defaults, or bankruptcy news at Basha's; personnel or corporate announcements at Winoker Realty and Centro; sustainability and green building news at Walgreens and McDonalds; and more.