I got the donkey in Arathi last week, and I was pretty pleased with that, too, although I still prefer my bouncy alpaca for ground travel.
But the biggest surprise this week happened while I was working the Kirin Tor emissary for my Nightborne rep token. I always do whatever Kirin Tor quests are in Suramar so that I get Nightborne rep as well, and this time the only quest was the Arcway dungeon quest. I've run it dozens of times any time it comes up during Nightborne/Kirin Tor emissary weeks and I'm pretty used to clearing it and vendoring all the drops at the end (or dropping Jeeves if my bag management was poor that week).
But this time, I was surprised to get a Tome of Hex: Spider. Even though I didn't anticipate using it instead of the Compy one I already have, I was still amazed to actually get something new in an expansion-old dungeon during the endless slog for the Nightborne flying carpet. And I will never get tired of hexxed mobs-now-critters wielding tiny spears menacingly.