Board Thread:General Discussion/@comment-1475805-20151224012437/@comment-25982945-20160927130439

Hugues de Payens wrote:

I don't think it will be the soul forge. In Thor: The Dark World, the Asgardians sent the Aether away to the collector because they feared having two infinity stones together.

So I don't think it will be the soul forge because they would still have two infinity stones together, which would contradict the Asgardians' beliefs of keeping them seperate. I agree