OK why isn't ANITA getting any love here? She is a perfect companion to Cruella. And Roger for if heroes ever get made. ANITA! ANITA! ANITA! ANITA! ROGER! ROGER! ROGER!
While Heroes hasn't even been discussed (hence why there has been a lack of Roger), I think the reason Anita isn't mentioned is because...as cool as she is, she wouldn't work. When I think of 101 Dalmatians, most people I know think about either the dalmatians themselves or Cruella, Anita isn't very well known, even if she would counter Cruella very well. If they released a set with Anita in it, I would go so far as to say Anita would sell the worst BY FAR. While I think they could definitely use her coat, glass, and hat look for inspiration, in and of herself, I don't see much that is really definable from anyone else.
In terms of the other heroines mentioned, they all have something very defined that easily set them apart from the pack:
Merida - The iconic curly red locks that was so praised in Brave
Megara - While the pink isn't anything special, they could really work her into a toga and her signature front hair flip
Alice - Alice's looks is very similar to Anita's in the right photo, but Alice is leagues more iconic and popular than Anita
Tinker Bell - There was a designer photo posted for her a few pages ago that I think would look great and allow her to keep her wings
Esmerelda - Being a gypsy, she gets to have a design similar to Jasmine, her tambourine is also a great way to define her
Giselle - While I honestly don't think Giselle has anything that is inherently special about her, I'm shocked to say that in her white dress, no other princess really looks like her. If they chose her pink dress in the beginning, she has a headband made from vines that is very different.
Vanellope - not only are her colors distinct, but the candy is very special
Those are just examples I thought of, Anita, while nice, is really just a normal lady with blonde hair. She doesn't have a special accessory or dress that makes it easy to know "OH THAT'S ANITA!" and she'd end up having the same problem the princes have. In order to know it is her, you'd probably have to give her something to hold and depending on the item that is being held isn't the best thing since the accessory is so small
Her look in her raincoat is similar to Jane Porter while her look at home is closer to something I could see on Alice (and Disney would never make Anita over Alice).
I'm not saying she isn't worthy, she deserves more of a spot than the lesser-known ones who don't sell as well like Eilowny and Kida (even though I personally would LOVE to see Kida more) because 101 Dalmatians is so popular. However, the problem with Anita is her look, she may have 2 outfits, but neither outfit is really iconic, they are just normal things any lady in NYC would wear and aren't inspired by a culture or a time period.