Just something that popped to my head while reading chap 376, It has as to many people, notified how gajeel barely does seem to have any fights. Now, i really like Gajeel as a character but i really do hope that Hiro will let him fight on the nine demon gates and kick some major butt.
In short: Gajeel feels far to useless right now as he hasn't won any major battle, So i hope he will have more fight in the future.