The first hint of a possible GS3 is due to the Mercury Adept, Alex. We all know that at the end of GS2 Alex gains the power of Alchemy, but is defeated by the Wise One. He then ends up being swollowed by the earth, but before this the Wise One says, "Perhaps if you survive, we shall meet again..." this is a dead give-a-way that the may be a sequel...

When the party leave Prox and head for Vale, before they go Isaac says that they will definitely return to Prox for a visit on their journey. Part of GS3 could involve another trip to Prox...who knows?

Clear Save Data.

Why would you have a clear save data if there isn't going to be a GS3 to transfer the data to? hmm?

This is my idea for GS3...

In Prox, Kraden says that the power of Alchemy could be used to wage wars or be used to "do great deeds." Now imagine this...

Golden Sun 3 : The War of Weyard.

Throughout GS and GS2 you meet many people who have the ability to use Psyenergy, children, adults, seniors and more. What if their powers evolved due to the lighting of the Lighthouses? What would become of these Adepts and the world of Weyard? What if all the four elemental forces rivaled each other, which would result in a massive war between the Four Elements. I certainly hope there will be a GS3.

I know that Camelot have ideas for GS3 but have not put there ideas into action. They are "thinking about it," well they better make GS3 or i'll...i'll... err i dunno...