I had a look at including video and it turns out I was premature in saying it would be easy. Currently librespot-python does not support video so only for that reason it is a no-go. If support ever arrives it might become possible but given that Spotify-video is burdened with Widevine DRM it might mean Spodcast would need to integrate a (headless) browser in the process to decrypt the video. So, for now, no video. For the future, maybe but don't hold your breath.