User blog comment:PUNCHURPREGNANT/Gray and Silver Predictions/@comment-24291661-20140110084107/@comment-212.159.24.38-20140110192134

I don't think that could be future Gray because when future Lucy appeared, she told everyone that Gray in future was dead. The only survivor known was Lucy. And when Lucy closed the Eclipse Gate, future Lucy went with the dragons so it's not a very explicative theory.