Most of the cast for 90 Day Fiancé: Happily Ever After? season 7 has been announced, but there is still one mystery couple that TLC has not revealed, and it could be a number of different 90 Day Fiancé couples. Though there was a lot of built-up anticipation for Happily Ever After? season 7, many fans were disappointed when they found out which cast members are returning. Several controversial franchise stars have been cast on season 7, including Angela Deem and Big Ed Brown. However, TLC has only revealed six of the seven couples who will feature on season 7.

The safe bet is that the unannounced couple will be one from the currently-airing 90 Day Fiancé season 9. Because the show has not yet concluded, TLC probably doesn’t want to spoil the last Happily Ever After? season 7 couple’s storyline before the finale. But there are a few season 9 couples who probably weren’t selected to go on Happily Ever After? Emily Bieber and Kobe Blaise have a dramatic storyline, but Emily is enormously disliked by viewers. Ariela Weinberg and Binyam Shibre have been featured a lot in the franchise recently, and TLC may feel that fans have grown tired of them.

Related: Every 90 Day Fiancé Season 9 Star Rumored To Be Pregnant After Filming

Of course, the final Happily Ever After? couple isn’t necessarily one from 90 Day Fiancé season 9, though it likely is. The network may simply be trying to create buzz among fans as they speculate who the seventh couple will be. There are a number of couples from the franchise who could deliver compelling storylines, so it’s possible that TLC has selected cast members from other 90 Day Fiancé seasons or spin-offs.

Memphis Smith & Hamza Moknii

Memphis Smith and Hamza Moknii in 90 Day Fiance: Before the 90 Days

Because viewers got so few answers about what happened to Memphis Smith and Hamza Moknii on the 90 Day Fiancé: Before the 90 Days season 5 Tell All, many have suspected that they would appear on the next season of Happily Ever After? There’s certainly a lot that went down between the two, which could be riveting television. However, it appears the couple broke up soon after Hamza arrived in the U.S., so there might not have been enough content to fill an entire season.

Bilal Hazziez & Shaeeda Sween

Bilal Hazziez Shaeeda Sween 90 Day Fiancé Season 9

Bilal and Hazziez and Shaeeda Sween are one of the most talked-about couples in 90 Day Fiancé season 9, and they would be a solid pick for Happily Ever After? The two have so far delivered an interesting, and sometimes frustrating, storyline, and there’s a lot of interest in them among fans. Bilal is considered a villain, while Shaeeda has gotten praise, so they would bring a unique dynamic to the show.

Kara Bass & Guillermo Rojer

Kara Bass and Guillermo Rojer from 90 Day Fiancé Season 9

Rumors are circulating that Kara Bass and Guillermo Rojer are not only still together, but are expecting a baby as well. Though their storyline on 90 Day Fiancé season 9 has been a little lackluster, a new baby could create a lot of drama for the couple. TLC is probably aware that many of the 90 Day Fiancé: Happily Ever After? season 7 couples are highly controversial. So Kara and Guillermo may have been cast as a less offensive couple who viewers can, perhaps begrudgingly, root for.

Next: Recycled Storylines That Are Ruining 90 Day Fiancé Season 9