I'll cover the juiciest ones first:
- The "Bug Trio" in AQ40 are now all tameable. Princess Yauj is the same blue as the rare in Tanaris, but Vem and Lord Kri are new colours:
Vem is pinkish-purple: Lord Kri is orange with red: I basically tamed them as the 3 of them were all wailing on me. I left Princess Yauj because she's a colour that's available elsewhere and also because I hoped to kill her. When she dies she spawns Yauj Brood which use SilithidScarabSkinGold that aren't available elsewhere. Unfortunately I couldn't get her down solo. She heals herself to 100% frequently and hunters can't seem to interrupt.

UPDATE: Yauj Brood (that spawn when Princess Yauj dies) are also tameable. They're beetles that use SilithidScarabSkinGold, which is kind of a coppery-orange, and is the only known use of this skin on a tameable mob. I can't fit any more screenshots in this post, wo will include them in a later one.
The third new and interesting skin is Princess Huhuran, the green SilithidWaspBossSkin5 wasp in AQ40:
Now for some less-interesting ones (ones that are tameable elsewhere):
- Hive'Zara Wasp (white wasp skin, just inside the entrance of AQ20) - Buru the Gorger (purple and orange silithid colossus, same as Ainamiss and the Gorishi Fledgling), boss in AQ20: - Ayamiss the Hunter (orange wasp boss, same as Sapphire Hive Queen), boss in AQ20: - Vekniss Hive Crawlers (elite level 62 pink scorpids in AQ40)
- Vekiniss Wasps (tan wasps) in AQ40
Theoretically tameable (i.e. I could start the tame), but perhaps impossible:
The following two wasps are flagged as tameable but their interrupts are so frequent that you can't get more than about a third of a tame off before it's cancelled. They're both immune to freezing traps. Perhaps there's some other trickier way to tame them, but since they're both available elsewhere, why bother?
- Hive'Zara Stingers (standard magenta skin) in AQ20
- Vekniss Stingers (white) in AQ40
Also in this category is the Hive'Zara Swarmers (standard green wasp) which spawn during the Ayamiss the Hunter fight. You can start the tame on them, but they don't react aggressively. They just keep flying around, ignoring you. In a few seconds they'll fly out of range and then the tame cancels.