Since this seems to be the prototype purity route ending, does that mean we might get more versions of Himawari where her mother changes?  We see future Maya perfectly take the place of Ayane at the dinner table, which infers that other girls could feasibly take that spot as well.
Does all of Hima's cosplay and changing hair colors during her reset suggest her origins can shift a little too?
Will a Yumi mothered Himawari be the holy grail of a perfectly balanced Tsundere?
Will an Ami mothered Himawari be only a little too crazy for her Dad rather then then psycho yandere her mother was?
What if, in Himawari's pursuit to give each girl her own happy ending, she inadvertently creates a bunch of new "real" Himawaris each with a different mother?  What if this is what gives Himawarico all the manpower it would ever need?
In summary, what if the purity routes' framework is getting to that happy ending where Akira/GirlX leave Kumon-mi and only stay in touch with a few select students in each case?  I think that would nicely setup the final true green route to bring this extended family into contact with each other, either by traveling to different worlds or getting their own private wish world.
Or maybe I'm reading too much into it
		
		
	 
Fuck it Full Himawari multi-parent wish list.  Some are more inspired then others:
YumiWari = Perfectly balanced Tsundere.
AmiWari = Girl who can breathe and whose poetry is top tier while being only vaguely incesty or rapey
MayaWari = Mini Maya who actually actively conveys her true thoughts and feelings.  Makes fun of her mom's love of stars and watermelons.  Loves cats
SanaWari = Top tier Italian chef whose spaghetti is Michelin starred even as a teenager.  Is never shy about sharing her feelings.  
FutabaWari = Loves books and body positivity.
NodokaWari = Famous writer who doesnt go too-incest crazy, limiting to 1 couple per novel.
MakotoWari = Super smart and studious plus depression free.  Comes up with a business plan that makes the Official Dildo Saber the worlds best selling dildo.
MikuWari = Obvious C-section delivery, perfect tomboy who can effortlessly switch between masculine and feminine styles.
ChikaWari = Wholesome Gyaru social media star.  Chinami is her manager.  She also acts as Chikawari's wholesome experience filter, shielding her innocence from bad influences like Tsuksasa.  
ToukaWari = Effortlessly classy yet can converse with the poors just as easily.  Future head of the company.  Tsukasa unsuccessfully tries to make the name of HimaJeeves stick.
MollyWari = The mythical oxymoron cool Chuuni.  MollyWari somehow finds the balance.
RinWari = the goodest of all homies everywhere.  Is able to instantly obtain Homie status with anyone.  Can also never roll below a 6 in DnD.
TsuneyoWari = Crowned Noodle Queen, can make perfect Tori Shio Ramen.  Translates her Mothers noodle speak to customers when Tsuneyo gets lost in the sauce.
UtaWari = famous wholesome youtube Maid
IoWari = builds rollercoasters miniatures in preparation of working for a big amusement park ride designer, always tells her mother how wonderful she is.  Loves baseball and is a natural cure for stomachaches.  
OtohaWari = Don't see happening as Akira is not a small boy.  Maybe fan fest world instead just goes her way.  
YasuWari = LIL Jesus but a girl.  Messiah of Hope, might become a cult leader unironically.  Means well.
NorikoWari = Always comes in 1st place in everything she does.  Maybe becomes a better Idol then Niki.
KirinWari = Honest about her feelings while being a notorious prankster.  Just more fun and games and less sexual assault-y like her mother.