Sonic The Hedgehog 3 Concept Art From The Movie, Shows Us What Was Planned, And What Could Be?

When the film was released digitally this past Tuesday, concept art from the film was also released online. And here, we can see what scenes were removed, and which ones were altered. But certain concept art may show us what the 4th film, and potentially future films, and limited spin-off series within the cinematic universe may be about.