I know it's not official but:
 
Giant Face Hugger
Level 20 Elite Lurker
Large Aberrant Wtf?!
XP 5,600
Initiative +20
Senses Perception +21, Darkvision
HP 298; 
Bloodied 149
Regeneration See healthy breakfast
AC 34; 
Fortitude 32, 
Reflex 32, 
Will 32
Resist acid 10
Saving Throws +2
Speed 6, Climb 6, See lunge
Action Points 1
 
 OmNomNomNomNom
 OmNomNomNomNom (Standard; at-will)+25 Vs. Ac 2d6+7 damage and ongoing 10 acid damage (save ends)
 
 Lunge
 Lunge (Standard; at-will)The Giant Face Hugger shifts 6 squares and makes the following attack; +23 vs fortitude, 3d6+8 damage and the target is grabbed.
 
 Swallow
 Swallow (Standard; must have grabbed creature of medium size or smaller)+23 vs Fortitude, If the attack hits the target is swallowed, restrained and no longer grabbed. The giant face hugger may have 2 targets swallowed at a time. Any swallowed enemy takes 20 acid damage per round. The swallowed creature has no line of sight to any creature other than the giant face hugger. The swallowed creature can only make melee or close attacks against the Giant face hugger. If the swallowed creature deals more than 30 damage to the face hugger with one attack, the giant face hugger spits it out. It appears an an ajacent space.
 
Healthy Meal The Giant face hugger gains 15 if it has a swallowed target that is taking acid damage. Regeneration 30 if it has two targets swallowed.
 
Bigness The giant face hugger can move freely while it has any creature smaller than itself grabbed.
 
Alignment Unaligned
Languages None
Skills Stealth +24
Str 23 (+16)
Dex 28 (+19)
Wis 23 (+16)
Con 23 (+16)
Int 3 (+6)
Cha 23 (+16)
 
Equipment None
 
 
Void Shard
Level 3 Minion
Tiny Shadow Animate XP 37
Initiative +3
Senses Perception +3
Withering aura (Necrotic) aura 2; All creatures in the aura take 1 necrotic damage. Multiple withering auras stack (void shards are immune to this ability)
HP 1; a missed attack never damages a minion.
AC 17; 
Fortitude 16, 
Reflex 16, 
Will 15 
Speed Fly 6 (hover) 
 
 Void touch
 Void touch (Standard; at-will)+6 Vs. Will, 1 necrotic damage
 
Of another dimension (Immediate Reaction (when hit by an attack); at-will)There is a 50% chance that the attack is changed to a miss.
 
Portal (Immediate Reaction (when missed by an attack); at-will)Another void shard appears in a square adjacent to the activating void shard
 
Alignment Unaligned
Languages None
Str 16 (+4)
Dex 16 (+4)
Wis 14 (+3)
Con 16 (+4)
Int 14 (+3)
Cha 14 (+3)
Equipment None
 
 
Little Sister
Level 7 Elite Controller
Medium Natural Animate (undead) XP 600
Initiative +6
Senses Perception +11
HP 160; 
Bloodied 80
AC 20; 
Fortitude 20, 
Reflex 20, 
Will 20
Saving Throws +2
Speed 6
Action Points 1
 
 Claw
 Claw (Standard; at-will)+12 vs AC, 2d6+5 Damage
 
 Life Sap
 Life Sap (Standard; at-will)Ranged 10, +11 vs will, 2d6+5 necrotic damage. if the target is weakened, it is now weakened and slowed (save ends).
 
 Death Stare
 Death Stare (Standard; recharge 456)Ranged 10, +11 Vs. Will, The target takes 1d8+5 necrotic damage and is dazed (save ends). If the target is already dazed, It is now weakened and dazed (save ends both)
 
 Faceless Laugh
 Faceless Laugh (Standard; recharge 6) ♦ 
Fear
The little sister cackles madly as it's face disintegrates. +11 vs Will, The target is weakened and takes ongoing 3d8+5 necrotic damage and 5 ongoing necrotic damage. Place three face tokens in spaces ajacent to the little sister.
 
 Re-absorb Face
 Re-absorb Face (Minor, must target a face token; at-will)Range 10, The targeted face token is destroyed, the little sister gains regeneration 5 for three rounds and a +1 to all defenses until the end of it's next turn.
 
Alignment Chaotic Evil
Languages Common
Skills Acrobatics +12, Bluff +11, Diplomacy +11, Stealth +12
Str 16 (+6)
Dex 18 (+7)
Wis 16 (+6)
Con 16 (+6)
Int 18 (+7)
Cha 16 (+6)
Equipment None
 
Face Token
Level 7 Minion
Small Natural Animate (undead) XP 75
Initiative +6
Senses Perception +6
HP 1; a missed attack never damages a minion.
AC 21; 
Fortitude 19, 
Reflex 19, 
Will 19
Speed 6
 
 Necro Bolt
 Necro Bolt (Standard; at-will) ♦ 
Necrotic
+10 Vs. Will, 6 Damage and the target takes a -1 to will defense (save ends, multiple hits stack)
 
Alignment Unaligned
Languages None
Str 16 (+6)
Dex 16 (+6)
Wis 16 (+6)
Con 16 (+6)
Int 16 (+6)
Cha 16 (+6)
Equipment None
 
Cthulu Kudos
 
-Sporemine