Think Guwaru will amount to anything?

After completing the Ellin Forest quest chain as normal,

 Spoiler

Luminous will get a bonus quest where he finds Guwaru. He was being controlled by the Black Mage back then, but now that Magnus backstabbed him and he reincarnated, he is free, and he has no intention of doing anything.

.....Surely they didn't introduce a General just to get backstabbed by another, did they? All the other Generals have become bosses, except Demon Slayer who became a playable character,

 Spoiler

Lotus who most likely will be a boss sometime in the near future, and Orca who got backstabbed and was forced to switch sides.

Think he'll be relevant?