Atlantis II: Shards of Chaos

Atlantis II: Shards of Chaos was the original proposed direct-to-video sequel to Atlantis: The Lost Empire.

Plot
Unknown.

Why It Was Cancelled

 * Atlantis: The Lost Empire failed in the box office.
 * A different title was decided instead

Result

 * Shards of Chaos was permanently cancelled and became Milo's Return.