User blog comment:Jho5689/Fairy Tail 337 and onwards/@comment-78.146.97.94-20130625172839/@comment-7418318-20130628073940

I agree, we don't really know what he's up to.

He joined Oracion Seis (both the old and reborn version) to further his own goals, not because he was loyal to Brain or Brain II.

Neither his falling out (i.e. almost being killed by) Brain, nor his self-sacrifice for Kinana (letting himself being captured without resistance) necessarily mean he's now a good guy.

Because they have a better chance to defeat the Dragons if all Dragon Slayers work together, it's in Cobra's own best interrest to fight the Dragons like this and thus you can't automatically call him a good guy because of it.

I'm not trying to say he's still evil, just that we really have no way of knowing. He might be good or he might evil. Only time will tell.