The Philadelphia-based DANCE IQUAIL!, founded and directed by Dr. Iquail Shaheed, returns to the Ailey Citigroup Theater with two NY premieres by Christian von Howard and Dr. Shaheed (the first Black male to earn a Doctor of Philosophy degree from Texas Women's University).   The evenings will see the NY premiere of Shaheed's "Rain: A Psalm for JHM," and his 2019 "Fly."   Also receiving its NY premiere is von Howard's "Movement in 3 Parts".   The Sat. 3 PM matinee will be devoted to the young dancers of the Company's community program performing group from Orange, N.J., appearing in original works and an excerpt from "Rain."