Based on her favorite food, Elise is most likely either German or Austrian. Pretty much fits her more efficient personality, anyways. Kind of wish she and the other girls got into more games, though. Fiona and Lobela we can reasonably assume are part of the UK based on comments Fiona made in a couple of prior event episodes (that, and the fact that both Fiona and Lobelia are a princess and a noblewoman narrows down the list considerably), and Luna's most likely former Soviet Bloc due to her hailing from a very cold, impoverished country that often grows Roasted Sweet Potatoes as a staple food, so Elise and Monica are currently unknown, the only hint at their possible places of origin are their favorite meals, as Stollen and Papanasi point to German/Austrian and Romanian, respectively. We definitely know that legalized gambling exists in Monica's home country, though. Well, Patty too, but then again, she's obviously local, ie South Pacific Islander, so she really doesn't count.
Well, Elise made it official that we're probably going to get three birthdays per month sooner or later. We still have November and December to go regarding increasing the count to two rather than just one (Nyotengu and Kokoro, respectively), but I suspect we'll be getting something soon. Who knows, maybe the cut girls might get in soon. I'm pretty sure the next girl is going to be Japanese (perhaps STM POW), but the third one we might get a cut girl, we'll see however. Assuming this is indeed the case, we're probably going to get either Tina or Christie, since they're December girls, and we definitely know that December is one of only two months to still only have one birthday girl on there, and both are POW-types.
Plus, now that Elise is on there, might as well do the rundown of the various themes/birth months and which girls belong to which:
Tropical Zodiac/Stellar
*Scorpio: Tsukushi and Nyotengu
*Saggitarius: Kokoro
*Capricorn: Monica
*Aquarius: Helena and Fiona
*Pisces: Kasumi:
*Aries: Honoka, Sayuri, and Nanami
*Taurus: Leifang and Nagisa
*Gemini: Hitomi and Marie Rose
*Cancer: Lobelia and Misaki
*Leo: Patty, Ayane, and Tamaki
*Virgo: Elise, Kanna, and Momiji
*Libra: Luna
Birthstone:
*Topaz: Nyotengu
*Lapis Lazuli: Kokoro
*Garnet: Monica and Helena
*Amethyst: Fiona and Kasumi
*Aquamarine: Honoka and Sayuri:
*Diamond: Nanami and Leifang
*Emerald: Nagisa and Hitomi
*Pearl: Marie Rose and Lobelia
*Ruby: Misaki and Patty
*Peridot: Ayane and Tamaki
*Sapphire: Elise, Kanna, and Momiji
*Opal: Luna and Tsukushi
Birth months:
*January: Monica and Helena
*February: Fiona and Kasumi
*March: Honoka and Sayuri
*April: Nanami and Leifang
*May: Nagisa and Hitomi
*June: Marie Rose and Lobelia
*July: Misaki and Patty
*August: Ayane and Tamaki
*September: Elise, Kanna, and Momiji
*October: Luna and Tsukushi
*November: Nyotengu
*December: Kokoro
The Bouquets will have to wait until at least Luna's birthday arrives.
And as an added bonus, I'll add in the Zodiac and Birthstones for the cut girls and NiCO:
Zodiacs
*Saggitarius: Tina and Christie
*Gemini: Rachel
*Cancer: Lisa
*Libra: Mila
*Scorpio: NiCO
Birthstones:
*Lapis-Lazuli: Tina and Christie
*Pearl: Rachel
*Ruby: Lisa
*Opal: Mila
*Topaz: NiCO
On the subject of birthdays, considering that Elise hasn't gotten her ring yet, not to mention they still need to debut her, Lobelia, and Nanami's Stellar Suits, I predict we're probably going to get a similar event to Lobelia and Nanami's Jewel event a couple weeks back sooner or later (probably in September, as August is reserved for Elise's second paid SSR, and aside from that, we're most likely going to get that collab that was teased very soon, not to mention October's most likely booked for Halloween, and November doesn't have any room either since they still have the fourth anniversary to do as well as the current themed birthday wrapup event.).