The first thing I think Unhallowed missed the boat on was being next instead of now. Coming out one week after Halloween would have been nice.
In addition, I expect quite a few Castle Ravenloft minis, and that tie in would have been fun. Probably not enough time, or something.
Anyway;
Strahd
Mounted Gnome Paladin on Dire Badger
Stonehunter Gnome
Knight of the Raven, with raven on shoulder.
Living Spell that's ooze-like, or mist-like.
Priest of Vecna
Grey Slaad
Ultroloth
Whatever the Charon daemons are now...
Large Gold Dragon Sorcerer, decked out in magic items with a staff, standing and casting.
Gnome Alchemist
Gnome Fleshwarper (IIRC, the one from lords of Madness with grafts)
Iron Defender
Packmate
Bone Knight on Skeletal Steed
and yes;
Kuo Toa
Kuo Toa cleric
That big Kuo Toa from Underdark.