I wanted to put up what was on Sleepywood. For the Black Friday sales, this source was pretty accurate, with the exception of the 90 day Mush Shop and PB pet.
Wednesday, December 16th Sale (1pm – 5pm PST)
- Spoiler:
Super Megaphone 2600 (quantity: 5)
MapleTV Messenger 500
Rollerskates 1200
Tropical Shorts 1100
Flame Tongue 3000
Tin Bucket 1700
Apple-Green Sweater 1600
Lead Monocle 1800
Green Camping Shirt 1100
Holiday Sock 1800 (quantity: 11)
Thursday, December 17th Sale 1 (8am – 1pm PST)
- Spoiler:
Mushroom Hair Pin 1200
Black Boxing Shoes 1100
The Legendary Gold Ring 2000
Dark Rocker Jeans 1100
Puffy Ram Wings 2400
Tiger Paw 2600
Thursday, December 17th Sale 2 (1pm – 5pm PST)
- Spoiler:
VIP Teleport Rock 2300 (quantity: 6)
Tania Package (M) 8600
Tania Package (F) 8600
Twinkling Star 1500
Friday, December 18th Sale 1 (8am – 1pm PST)
- Spoiler:
Feather Scimitar 2000
Drake Hat 1900
Premium Trenchcoat 2300
Wedding Gloves 1100
Japanese War Fan 2600
Kuniragi Hat 2600
Friday, December 18th Sale 2 (1pm – 5pm PST)
- Spoiler:
Mushroom House Elf 3000 (7 days left)
Orbis Lens & Face Package (REG) 1500
NLC Skin & Face Package 1800
Snowy Snow 1500 (quantity: 11)
Tree Decor 1400 (quantity: 11)
Holiday Store Permit 2200
Saturday, December 19th Sale 1 (8am – 1pm PST)
- Spoiler:
Red Leather Boots 700
Forked Pork 2800
Blue Eye Guard 1300
Pink-Dotted Hairband 1400
Brown Argyle Sweater 1700
Christmas Cape 2500
Saturday, December 19th Sale 2 (1pm – 5pm PST)
- Spoiler:
Remote Gachapon Ticket 15800 (quantity:35)
Mu Lung VIP Package 7200
Henesys VIP Package 6900
Kerning City Hair Color Coupon (REG) 1100
Kerning City Hair Style Coupon (VIP) 2600
Sunday, December 20th Sale 1 (8am – 1pm PST)
- Spoiler:
Moon Baton 1900
Whale Hat 1800
Yellow Beret 1300
Big Rabbit Feet 1000
Pink Vest Blouse 2100
Orange Snowflake Sweater 1600
Sunday, December 20st Sale 2 (1pm – 5pm PST)
- Spoiler:
Red Mesoranger Package (M) 1100
Green Mesoranger Package 1100
Black Mesoranger Package 1100
Orbis VIP Package 7200
Ludibrium VIP Package 6900
Henesys Hair Style Coupon (VIP) 2900
Skull Label Ring 1800
Monday, December 21st Sale 1 (8am – 1pm PST)
- Spoiler:
Nuclear Fire 1700
Shooting Star Jeans 800
Goo Goo 600
Red Casual Suit 2100
Baby Angel Wings 1700
Green Skin Package 3400
Pink Skin Package 3200
Monday, December 21st Sale 2 (1pm – 5pm PST)
- Spoiler:
Mu Lung Hair Color Coupon (VIP) 2300
Mu Lung Skin Care Coupon 1400
Mu Lung Cosmetic Lens Coupon (VIP) 2500
The Robot Stand 35000 (30 days left)
Ludibrium Hair Style Coupon (VIP) 2900
Aura Ring 1500
Tuesday, December 22nd Sale 1 (8am – 1pm PST)
- Spoiler:
Striped Hoodie Shirt 1400
Sunfire Wings 1600
Violet Heart Beanie 2300
Pink-Striped Dress 2500
Giant Lollipop 2200
Moomoo Gloves 2500
Green Ting Slippers 400
Tuesday, December 22nd Sale 2 (1pm – 5pm PST)
- Spoiler:
4 hour 2 x EXP special coupon 1200
4 hour 2 x Drop special coupon 900
Henesys Face Coupon (VIP) 2600
Orbis Hair Color Coupon (VIP) 2300
Ninja Mask for Men 1600
Heart-Shaped Chocolate 1900
Triple Megaphone 12500 (quantity: 11)
Wednesday, December 23rd Sale 1 (8am – 1pm PST)
- Spoiler:
Brown Paperbag Mask 1400
Scissor Stick 1900
Bright Hot Pink Heart 2000
Chipmunk Tail 1300
Layered Duckie T 1400
Santa Girl Package 4900
Santa Boy Package 4900
Wednesday, December 23rd Sale 2 (1pm – 5pm PST)
- Spoiler:
Remote Gachapon Ticket 6800 (quantity: 11)
Store Remote Controller 600
Granny's Food Stand 35000 (30 days left)
Cashier: Teddy Bear Clerk 3000 (14 days left)
Amoria Package (VIP) 7200
NLC VIP Package 6900
Wedding Ticket (Chapel) 13000
Premium Wedding Ticket (Cathedral) 17400
Thursday, December 24th Sale (12am – 12am 12/25 PST)
- Spoiler:
Brown Kitty Package 3300
Brown Puppy Package 3300
Rudolph Package 4200
Pink Bunny Package 3300
Black Pig Package 3700
Panda Package 3800
Husky Package 4000
Dino Girl Package 3700
Dino Boy Package 3700
Monkey Package 3700
White Tiger Package 3800
Penguin Package 3500
Golden Pig Package 3300
Robot Package 3800
Mini Yeti Package 3700
Jr. Balrog Package 3800
Snowman Package 3800
Robo Package 6800
White Duck Package 3900
Sun Wu Kong Package 3400
Wedding Tuxedo Package 3200
Wedding Dress 2600
Amoria Hairstyle Coupon (VIP) 2900
Amoria Face Coupon (VIP) 2600
Mistletoe 1600
Christmas Tree 1000
Snowman 1800
Star Megassenger 1200
Heart Megassenger 1500
Cloud 9 Messenger 1200
Friday, December 25th Sale 1 (8am – 1pm PST)
- Spoiler:
Gothic Mini Hat 1200
Camo Hooded Jacket 1900
Guan Yu Spear 2500
Lost Kitty 1800
Green Shutter Shades 1900
Princess Dress 2000
Friday, December 25th Sale 2 (1pm – 5pm PST)
- Spoiler:
2x EXP Card Type 1 - Weekends 5400 (30 days left)
2x EXP Card Type 5 - Everyday 11400 (30 days left)
Maple Life (A-Type) 9600
Maple Life (B-Type) 11700
SP Reset (1st job) 6000 (quantity: 5)
SP Reset (2nd job) 14700 (quantity: 5)
SP Reset (3rd job) 30200 (quantity: 5)
SP Reset (4th job) 42000 (quantity: 5)
AP Reset 7800 (quantity: 5)
AP Reset 18600 (quantity: 10)
AP Reset 40300 (quantity: 20)
Gachapon Ticket 19500 (quantity: 35)
Gachapon Ticket 6500 (quantity: 11)
Seraphim Package(M) 6600
Seraphim Package(F) 6600
Showa Hair Style Coupon (VIP) 2900
Chalkboard 3300 (7 days left)
Hearty Party Bear 1700 (quantity: 11)
Saturday, December 26th Sale 1 (8am – 1pm PST)
- Spoiler:
Blush 1300
Black Wakeboard Pants 1000
Amorian Aura Ring 2000
Cute Mouse Ears 2500
Pink Tie Casual Suit 1900
Cao Cao Bow 2000
Blue Air H's 900
Saturday, December 26th Sale 2 (1pm – 5pm PST)
- Spoiler:
Gothic Package I 5200
Gothic Package II 5200
The Owl of Minerva 1900 (quantity: 6)
2x Drop Card Type 2 - Everyday 7200 (30 days left)
2x Drop Card Type 3 - Everyday 7200 (30 days left)
1day 2x Drop Special Coupon (1 day) 2400
Crush Ring 4200
NLC Face Coupon (VIP) 2200
NLC Cosmetic Lens Coupon (VIP) 2500
Sunday, December 27th Sale 1 (8am – 1pm PST)
- Spoiler:
Royal Oaken Staff 2700
Sky Rider Jacket 1400
Electric Knuckle 2800
White Bandage 1100
Denim Miniskirt 1200
Gothic Boots 700
Sunday, December 27th Sale 2 (1pm – 5pm PST)
- Spoiler:
Mercury Package (M) 10300
Mercury Package (F) 10300
Add Storage Slots 3500
Add Equip Slots 3500
Add Use Slots 3700
Add ETC Slots 3700
Bolded the stuff I thought would be the most popular
by 
Subject: Winter Sale *Predicted Schedule* 
