Playlogic has released an Achievement/Trophy list for the upcoming Fairytale Fights and that "Kill 1000 Kids" one we were told about doesn't seem to be on it.
However, there are six "secret" Achievements/Trophies and a whole slew of "kill xx enemies this way" awards that suggest the game hasn't been watered down at all. My personal favourite will probably be "Whoooaaaa!" and "Wheeeeeee!" because it involves excessive blood-sliding.
A Playlolgic representative declined to confirm or deny the inclusion of the child-killing Achievement/Trophy, but they did supply us with this list:
Gamerscore / Trophy level / Name / Description 15 / Bronze / Closed "The Lumberjack Lands" / Complete all the chapters in "The Lumberjack Lands"
15 / Bronze / Closed "The Candy Castle" / Complete all the chapters in "The Candy Castle"
15 / Bronze / Closed "The Little Kingdoms" / Complete all the chapters in "The Little Kingdoms"
15 / Bronze / Closed "The House in the Clouds" / Complete all the chapters in "The House in the Clouds"
15 / Bronze / Closed "Who's Famous Now!" / Complete the "Who's Famous Now!" chapter
15 / Bronze / Incredible Combo! / Perform a 50 hit combo
15 / Bronze / The Sky is the Limit / Perform an aerial combo
15 / Bronze / King for a Day / Win an Arena chapter without dying
15 / Bronze / Pacifists Finish Last / Lose an Arena chapter without killing
15 / Bronze / King Pushy / Win an Arena chapter by using push only
15 / Bronze / Unstoppable / Win 5 Arena chapters in a row in 1 play session
15 / Silver / Notorious / Win 100 Arena chapters
50 / Silver / Variety is the Spice of Life / Complete Stuffy the Taxidermist's collection by defeating all enemies
100 / Gold / Mine! / Collect all weapons
15 / Bronze / Beaver Killer / Defeat The Log Champion
15 / Bronze / Real Beaver Killer / Defeat The Log Champion again
15 / Bronze / Puppet Master / Defeat Pinocchio
15 / Bronze / Go Eat Your Own House / Defeat Hansel and Gretel
15 / Bronze / And All is Quiet Again / Defeat The Pied Piper
15 / Bronze / The Witch is Burned / Defeat The Candy Witch
15 / Bronze / I Didn't Want Her Anyway / Defeat The Little Giant
15 / Bronze / Beat up the Bully / Defeat The Little Giant again
15 / Bronze / Turning a Blind Eye / Defeat Father Giant
15 / Bronze / Left the Tailor in Stitches / Defeat The Little Tailor
15 / Bronze / "Fairytale Land" is Painted Red / Spill 10 000 gallons of blood
15 / Bronze / "Fairytale Land" is Sucked Dry / Collect 1 000 000 riches
15 / Bronze / Hand Holder / Complete game on easy mode with multiple players
15 / Silver / Sharing Celebrity / Complete game on medium mode with multiple players
15 / Silver / Dream Team / Complete game on hard mode with multiple players
15 / Bronze / Hero / Complete game on easy mode single player
15 / Silver / Legendary / Complete game on medium mode single player
15 / Silver / Heroic Ever After/ Complete single player on hard mode
15 / Bronze / Whoooaaaa! / Slide through blood continuously for 3 minutes
15 / Bronze / Wheeeeeee! / Slide 330 feet continuously through blood
15 / Bronze / Master Slicer / Slice 250 enemies with a sharp weapon
15 / Bronze / KABLAM! / Crush 250 enemies using a blunt weapon
15 / Bronze / Strike a Pose! / Stun 50 players using the love potion or love wand
30 / Silver / Who Wants My Autograph? / Complete all chapters from start till end with at least an A or A+ Grade
125 / Bronze / King Bling / Buy all statue upgrades
15 / Bronze / Treasure Hunter / Open all treasure chests
15 / Bronze / Weapons Are For Babies / Kill 250 enemies without using any weapons
15 / Bronze / Lazy Bastard / Remain in Taleville for more than 15 minutes
0 / Platinum / Victorious! / Unlock all Trophies!
Note: That "King Bling" Gamerscore reading looks like a typo — we've contacted Playlogic for confirmation.