The ratings and viewership data are in for the Sept. 13 edition of NXT. According to Showbuzz Daily, the anniversary episode had an audience of 728,000. That’s a nearly 6.5% improvement over last Tuesday’s Worlds Collide fallout episode, and the best number since last October’s Halloween Havoc edition of the show. Last night’s episode was billed as a one year anniversary celebration for the 2.0 rebranding, and closed with a video which seemed to close the technicolor chapter of the developmental show’s history. So we can’t credit the return of the black-and-gold with the big number, but it’s an interesting…