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

My theory is that Silver is Future Gray.

1. Natsu states he smells like Gray

2. Silver told Natsu not to mention such a 'disgusting' name

I think that Future Gray possibly changed his name to Silver, I mean it's almost the same colour, just shiner. I also think that the reason why he changed his name was because he regretted something in his past. This may be linked to Juvia, since Juvia stated that she has a bad feeling about something. When Silver is first introduced, he goes to visit a grave. Possibly Juvia's grave? I don't know. These are just ideas.