Just when you thought you’d seen the last of the Dreamworks Dragons franchise, NBC is bringing back Hiccup (Jay Baruchel), Astrid (America Ferrera), Stoick (Gerard Butler), Gobber (Craig Ferguson), Fishlegs (Christopher Mintz-Plasse), and more of your favorite characters for the all-new animated holiday special, How to Train Your Dragon Homecoming. This new tale is set …