@episode @tempforthis Here's my prediction:
Ichika: kisser from Scrambled Eggs arc; it's fitting as her character development as well as foreshadowing from how smugtastically confident she is at this chapter.
Nino: girl who met past Fuutarou; the only one who showed foreshadowing that she recognizes blonde Fuutarou.
Miku: BEST girl who will keep the waifu war going; for narrative value.
Yotsuba: old Rena, maybe; Yotsuba might be taken aback by the moment because she didn't expect Fuutarou to ask her name, something only an airhead would ignore. The only other name she could think of at the time would be her mother's - Rena. Also, at the Seven Goodbyes arc, the only person who's relationship with Fuutarou is "normal" is Yotsuba, making it unlikely to be the other girls.
Itsuki: future bride; based on
@Evat's
hypothesis of Itsuki's missing accent during the wedding, it's a possibility that Itsuki is the bride.
Harem ending? Unlikely. It's against Japan's laws. Plus, where's the family approval?
Although, if it's real then the only likely scenario would be for Fuutarou to marry only one of them and keep the polygamy under the rug.
Also, the cover is following a trend.
1: All five quints in casual clothing
2-6: Each quint individually in casual clothing in their birth order
7-8: Ichika and Nino individually in wedding outfits in their birth order
Prediction:
7-11: Each quint individually in wedding outfits in their birth order
If harem ending,
12: Final volume, all five quints in wedding dresses.
Although I kinda doubt it cause it's an obvious spoiler. Or maybe Negi will trigger 80% of the fanbase by only allowing one girl to marry Fuutarou. Plus,
I predicted that the in-universe time until the actual marriage is still five years away, which means that Negi will have to cram about four years into six volumes.
Yeah I doubt it. Negi is a skilled writer who knows that rushing would mean the death of the series.