You can see the cover, and features lists for the Mulan releases down below.
Mulan 2020 4K Cover
Disney's Live-Action "Mulan" 4K Ultra HD™ & Blu-ray™ Bonus Features
Featurettes:
Updating A Classic – Explore how filmmakers honored the original animated classic while creating an epic live-action adventure for a new generation.
Mulan by Another Name – Meet talented actor Yifei[...]
mulan 2020 Archives
Well Mushu fans, looks like it is confirmed: our favorite dragon will NOT be in the live-action Mulan remake from Disney when it opens on March 27th.