The Cure names and the mascot have been leaked!
Last week, the names have been leaked in a toy/makeup listing.
The Cures are Cure Sky and Cure Prism.
There is a major lean of Cure Sky being the lead Cure, as she shares the same name as the title, like Cure Star, and she has a Pretty Up Cheek item (Sky Heart), while Cure Prism doesn't. You may be asking, why is this important, and it's important because the only other Pretty Up Cheek products followed the same order. Two for Cure Precious, the lead, one for Cure Finale, the sixth ranger.
Unlike other seasons, no one really knows what the colors are.
The mascot is named Princess エル-chan. I say エル (eru) because we don't really know what it's spelled like. Predictions include L, Elle, Aile, Air, and El.
One theory in support of the name El is that "-el" is at the end of many angel names. Gabriel, Raphael, and Michael for example.
My theory for the name Elle is that it's short for a few names, including Ella (meaning fairy maiden), and Eleanor (meaning God is my light), and even Elizabeth (meaning God is my oath). While the literal name Elle, not as a nickname, is just "she" in French, this spelling could be possible?
People also say that she could be the sixth ranger, because the listings for the first toys of the series are a cradle, a sling, and a talking doll. Perhaps the Cures will see her grow from a baby to a teenager, and she'll become a Cure, like Cure Felice.
I don't feel that theory just yet, since this year we had Kome-Kome, a baby who turns into a teenager and helps the Cures in battle. Feels like a coincidental repeat. But then again, it is a baby.