I recently watched through the Young Hunters arc of Digimon Xros Wars, and when the legendary heroes appeared i felt something was missing, and i thought how fun would it have been if the animators used the old footage or made new footage of the evolutions of the original kids, here's an interpretation of my thoughts of how it could be.
Sorry if it's a bit bad at times, i'm not the best at editing.
Scene is from Digimon Xros Wars Young Hunters episode 78