Visual Upgrades I Only Just Noticed in Bodyguard Followers

If you have a level 2 or higher Barracks, you can assign certain followers with the Bodyguard trait to "work it" and take them anywhere outdoors in Draenor (not sure about Ashran.)

Anything you kill will grant you 10 reputation with them (this is affected by bonuses, so as a human with a level 3 trading post, I usually get 14.) You can then progress through three reputations: Bodyguard, Trusted Bodyguard, and Personal Wingman.

At the second level, you'll get an instant-complete quest that unlocks a new ability. At the third and final level, you'll be sent on a quest to one of the level 100 daily assault areas to retrieve an item for them and unlock a useful non-combat ability.

What I had not realized until recently is that most of the bodyguards get a visual upgrade when this happens.

Tormmok: After retrieving his sword in a cave at the Broken Precipice in Nagrand, he'll wield it instead of the rusty old one he used to have and become a repair vendor.

Talonpriest Ishaal: After acquiring a staff from a Shadowmoon sorcerer at the Pillars of Fate in Shadowmoon Valley (though I've always felt this counted more as Spires of Arak, given that you can use your outpost ability from there,) Ishaal will be able to send and receive mail and he'll gain a shadowform with interesting particle effects.

Delvar Ironfist (Alliance Only:) Delvar will send you to the Everbloom Wilds to take down a plant-zombie and give him the remains (as a Death Knight he's particularly appalled by people getting killed and then taken over by a foreign puppetmaster.) He'll gain the ability to create a Death Gate that takes you back to your garrison and he'll trade out his purple tier 10 armor for some tier 17.

Leorajh: Leorajh will send you to Skettis to retrieve some of his prayer beads. Doing so will allow you to access your garrison follower missions out in the field, though as far as I can tell, he has no change to his appearance.

I have yet to do Defender Ilona or either of the Horde-only followers, but this was kind of a neat discovery for me.

Also, I believe these changes only apply to them while they're active bodyguards - unassigning them will return them to their old looks.