As of this moment The Guild has a new theme song. Check up above in the first post for it at the top. So when the guild is standing on an overlook, looking down on a burning village saying "We're all that's left, we're their only hope." keep that song in mind. 

BECAUSE WE WEREN'T SIMILAR ENOUGH TO FAIRY TAIL ALREADY. 

Seriously, got thinking about it... and I promise you, none of this was actually intentional but...

Badass Redhead who always wears armor and is very protective of her guild.
Guild is seen as a family, not just a random group.
Guild has a unique fire user with dragon traits and is a very rare breed
Dragons were once around but seem to have disappeared, and their whereabouts and actions are mostly a mystery recently

The similarities are actually stacking up and anyone who has seen Fairy Tail would understand.