The first English trailer for Puella Magi Madoka Magica The Movie: Rebellion was released recently by Aniplex of America and at the end we see that Nagisa Momoe will be voiced by Xanthe Huynh in the English release.
The trailer can be found below while Aniplex of America is set to release Puella Magi Madoka Magica The Movie: Rebellion on April 7th in three different packages. There will be a Limited Edition Blu-ray/DVD set that comes with a deluxe booklet, soundtrack CD, and a postcard collection, a standard Blu-ray release, and finally a standard DVD release of the film priced at $79.98, $49.98, and $39.98 respectively.