Several stars from the Bravo franchise shared photos on Instagram over the weekend boarding a plane to begin filming

The upcoming Real Housewives crossover reality series will be an all-star affair.

PEOPLE has confirmed that the cast of the still-untitled mashup series will include Cynthia Bailey, Luann de Lesseps, Melissa Gorga, Teresa Giudice, Kenya Moore, Kyle Richards and Ramona Singer. The series will stream on Peacock.

Over the weekend, several stars of the hit Bravo franchise shared photos on Instagram boarding airplanes around the same time, hinting that production on the upcoming show is underway.

"Off we go! ✈️🥂😉," Real Housewives of New York City's Singer, 64, wrote Saturday alongside a photo of herself smiling aboard a jet. The next day, she shared a snap of herself happily boarding another plane, writing, "Heading to paradise! 🌴🍹☀️."

Her RHONY costar de Lesseps, 55, also shared airplane photos over the weekend, writing on Sunday, "Ready for take off? ✈️."

Additionally, Real Housewives of New Jersey star Gorga, 42, posed while stepping up into a jet, writing, "Nothing represents Jersey like 🐆," then on Sunday writing, "You Ready?!" at an airport.

Giudice, 48, and Real Housewives of Beverly Hills' Richards, 52, also shared an airport photo on their Instagram Stories over the weekend, according to The Sun.

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A source told PEOPLE in February that a Real Housewives mashup show was in development at PeacockNCBUniversal's streaming platform. The network previously teased the untitled project as one of its upcoming originals.

Listen below to the episode of our daily podcast PEOPLE Every Day for more on the Real Housewives All-Stars spinoff.

The Real Housewives franchise first launched in March 2006 with The Real Housewives of Orange County.