So I've been seeing a lot of stuff about how in Season 3 the Shiro that returns is not the real Shiro but a clone.
While there is a lot of good proof to support this, I don't think anyone took into account the fact that Shiro still has his metal arm. If the Galra did clone Shiro, I don't think it would be biologically possible to include the medal arm in the process. Unless the DreamWorks is cheating against logic which they often do in this show. And if they just gave this clone a new arm, they would probably give him an arm much more powerful if the clone is meant to be used against Voltron right? But if he's just a spy, I don't think the Galra would go through all the trouble.
But maybe people are getting it all backwards? Maybe this is the real Shiro and there are other clones of him out there that the Galra made? I dunno. I am really hoping that I'm right in saying that DreamWorks is just trying to mess with us and this really is the real Shiro but it's hard to say.
There is a lot of evidence supporting both sides of the argument and I'm just gonna stick with my side because this season killed me and I need some hope here.