Dance lovers are kicking up their heels. New York City Center’s 17th annual Fall for Dance Festival is going digital for the first time. Along with top dance companies, this year’s program features four commissioned world premieres by choreographers such as Christopher Wheeldon and Jamar Roberts. Performances, which debut on October 21 and 26, will be available on demand through November 1. nycitycenter.org/pdps/FallforDance