They are the main characters he cant cut them out... i think. Its still weird that he forgot about them.
"This will be the "Basic" completed game, or commonly known as "Full release", with endings for characters who have stories up to this point, such as Linda, Caroline, Sara, Celia, Liza, Neighbours, Judy etc." This was said by Ashbash in December in Discord, and now we are not even sure anymore if anyone besides Sara, Judy, Violet, Lily, Linda, Caroline and Celia are getting content. It would've been just easier if Icstor had listed the characters who are and who are not getting content.