The Golden Clash
Shaka of Virgo is dead. But in the Garden, three Knights are surprised to see Shaka still there. Source: crunchyroll
Aired 27/06/2003EP 10 - The Golden Clash

2002
Saint Seiya: The Hades Chapter - Sanctuary
Hades is planning to take over the world, to achieve that goal, he sends out deceased Gold Saints to take Athena's head. Seiya and the other Bronze Saints come to help but their help isn't appreciated by the remaining Gold Saints that are still alive.
(Source: Anime News Network)