Here's a quick rundown of the dolls. Translations may not be 100% accurate, so don't base a huge purchase only on my word.
3990 Yen dolls with gimmicks
All include a fashion, shoes, jewelry, and a stand.
Extension Change Jenny
She comes with an "Extension Maker" thing that clips "extensions" into Jenny's hair. She comes with some extensions and hair clips.
Pop Color Mirai
Includes water soluble markers for drawing on the hair and face. That's not going to end well.
Yurufuwa (Loose and Fluffy) Curl Jessica
Includes some hair curlers. The description mentions "memory hair" that I think is the same hair shown here.
Kira kawa deco (Sparkly Cute Deco) Ayano
Comes with 26 stickers you can stick all over her. Deco refers to the trend of coating an item with rhinestones and other charms.
Airy Cut Shion
Apparently comes with a dolly razor comb. Brilliant from a marketing perspective, maybe not so popular from a parenting perspective.
Symbol Jenny 3360 Yen
Comes in a simple fashion with shoes, brush, and stand. Apparently "Symbol" means "logo" in this context, and her dress is meant to match the new packaging.
Jenny Room Wear 2625 Yen
Comes in a simple fashion with shoes.
Jenny Leotard Pink or Blue 1890 Yen each
Comes in a "leotard" and nothing else. No stand or shoes. Takara is so miserly with their shoes.
Love Jenny Wear Set, 2100 Yen each
Wear Box, 630 Yen Each
Cool Style for Jenny
Pop Casual Style for Mirai
Hime Gal (Princess Gal) Style for Jessica
LoveKawa (LoveCute) Style for Ayano
Onesan (Big Sister) Style for Shion
I think every term except "KiraKawaDeco" is a legitimate fashion term. I know I shouldn't be so impressed that a doll designer can pick up a fashion magazine, but the bar has been set so low lately. I want almost all of it.