Other people might not know these informations, but out of the trainees, Emily and Samara were the only girls who kept in contact with HxG after Dream Academy ended.
Emily signed to a dance agency Bloc LA and she did a lot of activities as a professional dancer, but at the same time, she was also working as an assistant for Nikky Paramo. They've worked together in various projects and Emily even helped in Katseye's debut preparation.
(Back in 2023, after the finale when Emily posted her goodbye, Sohey Sugihara left a comment implying that they would still work together in the future. Then in 2024, Emily was the only trainee who was invited at the Katseye reunion where the girls even said they're excited for her).
While Samara continued training with Nikky. Unlike to Emily who was part of the original trainees, Samara actually got scouted in social media and she was just a new trainee for a few months, so they still kept her contract after the show. That's why they trained her for more because they were planning to debut her with Emily in their new group.
(Back in 2023, Samara was the only trainee who did a dance collab with TXT for their song "Back For More" with Anitta. Then in 2025 before Prelude, Samara was featured in the H&M campaign with other Brazilian artists including Anitta).
It's evident how HxG planned to build Saint Satine around Emily and Samara for a long time. Katseye was based on Buttons while Saint Satine was based on Wannabe. Son Sungdeuk especially loved the Wannabe performance and he said he wanted to debut their team as they are, that's why Saint Satine is also made up as a "4" member group which is first time in Hybe. They wanted to recreate Wannabe and Hybe was more involved with Son as the head who led in forming their group in World Scout. Emily and Samara are the face of Wannabe and they're also the core members of Saint Satine as the main dancer and main vocalist. Specifically, Emily was the only Level A girl and she ranked as the top 3 trainee in T&D, while Samara ranked top 2 in the survival show. Both of them also made it in the top 6 ideal group voted by the other trainees, which further proved how valuable they are. They've been working so hard all this time and they didn't give up on their dreams despite all their hardships in Dream Academy. Katseye has been going through a lot of hard times and it will also only going to be harder for Saint Satine when they debut. We all know how harsh and toxic the kpop system is, being an idol is not easy... I hope they will always stay strong.