I've successfully renamed all of my non-wild pets. Whew!! All names should be unique, but let me know if you see any doubles.
There were moments of frustration where I just couldn't think of ANYTHING to call a pet. For the Raiding With Leashes companions, I ended up naming nearly all of them after the bosses they drop from lol. I just couldn't get inspired with those. :(
For some reason, renaming a pet Jade produces an error message. Kind of odd considering how common and fitting the name is for many of the green-ish pets. Oh well. I got around it by naming my Jade Owl Jadeite, which also happens to be a precious green mineral.
Thanks to a good friend of mine who suggested the name Tychus for Mini Thor. How bittersweet!
Well, now I can officially say that I'm ready for all the new pets coming in patch 5.2 now. Sorta. At least when it comes to renaming my pets, I guess? :P