By TheWrap Staff LOS ANGELES (TheWrap.com) – Nigel Lythgoe didn't wait for the official word from the network. On Tuesday's season finale of Fox's "So You Think You Can Dance," Lythgoe pronounced that the show would return for an 11th season – something he said he learned just minutes before the season-ender started. In response, a Fox representative confirmed the renewal for TheWrap. …