User blog comment:Thetwindler/Dropped/Discarded Ideas throughout the seasons/@comment-108.36.76.116-20191213080223/@comment-68.217.234.155-20191231054840

Maybe this will figure in the endgame. Could dogs become vessels for angels? Assist the Winchesters in some way? Play a part in Chuck's plan? Keep someone( not human, or no longer a human) company?