The boxes changed design sometime along the way but my No 18 has the old style box, while No 17 has the new design. I just haven't paid them much attention before. The one thing I kind of miss, is the bubble decal on front that contains the glitter stars, guess that is part of why there is a new design. The decals are often missing as the glue doesn't hold very well, as can be seen on my No 18. 

EXTRA are still Original and Curvy. There aren't any Petite or Tall dolls in this series as far as I am aware - or maybe that's another part of the lack of my attention.

HDJ44 Barbie EXTRA 11, ©2021
Face: ©2015 Olivia
Body: Articulated

HJD46 Barbie EXTRA 13, ©2021
Face: ©1998 Goddess
Body: Articulated Curvy

HHN06 Barbie EXTRA 14, ©2022
Face: ©2015 Daisy
Body: Articulated Curvy

HHN07 Barbie EXTRA 15, ©2022
Face: ©2020 Barbie GRB52
Body: Articulated

HHN08 Barbie EXTRA 16, ©2022
Face: ©2015 Millie Closed Mouth
Body: Articulated

HHN09 Barbie EXTRA 17, ©2022
Face: ©2016 June
Body: Articulated

HHN10 Barbie EXTRA 18, ©2022
Face: ©2014 Neysa
Body: Articulated Curvy

HKP93 Barbie EXTRA 19, ©2022
Face: ©2014 Crystal
Body: Articulated

HKP95 Barbie EXTRA 20, ©2022
Face: ©2014 Neysa
Body: Articulated Curvy

Mattel promo photos