@WeddingDJ I'm thinking about to develop a new "360° video" theme with a-frame - shouldn't be so difficult since I could use the already existing 360 theme as template.
Meanwhile, I've also taken a closer look at the 3D model theme and realized that animations do not work. As we would like to use animated 3D models in our academic e-learning scenarios, I've implemented this in our IdeaSpaceVR installation with the animation-mixer component (part of a-frame-extras). So far this works with gltf models only, and I've made a pull request for it (only 2 lines of code that had to be changed).
Many greetings form Germany,