Well since I haven’t seen anyone say it yet: I’m predicting that Kuron IS a clone who has had Shiro’s memories implanted in him and that the Galra are using him to make risky and deadly suggestions to Voltron, which the entire team (EXCEPT FOR KEITH, WE SHOULD NOTE!!), would probably follow without a second thought, out of respect and presumed authority. They also can probably spy on the team using him. BUT I also think that the Galra gave him “free will” so that they won’t have to pilot his every move, and that for the most part, he WILL be looking out for the team, unless the opportunity for subtle sabotage arises. However, this will turn on Haggar ‘n'em, because Kuron will eventually find out - probably when/if Real Shiro turns up - and eventually decide to continue helping Voltron anyway. Because even if the memories aren’t his, he can see the team for what they are and has (to a degree) been programmed to see things how Shiro sees them. I don’t know how they’ll de-Galra him, but I think he’s going to actually turn into an asset for them. Everyone will be wary at first , but he will prove himself to them, and wind up being very beneficial to the team.