Trailer: "Mamma Mia - Here We Go Again"

Via press release:

Ten years after Mamma Mia! The Movie grossed more than $600 million around the world, you are invited to return to the magical Greek island of Kalokairi in an all-new original musical based on the songs of ABBA. With the film’s original cast returning and new additions including Lily James (Cinderella, Baby Driver), the musical comedy will open on July 20, 2018.

Reprising their roles from Mamma Mia! The Movie are Academy Award® winner Meryl Streep as Donna, Julie Walters as Rosie and Christine Baranski as Tanya. Amanda Seyfried and Dominic Cooper reunite as Sophie and Sky, while Pierce Brosnan, Stellan Skarsgård and Oscar® winner Colin Firth return to play Sophie’s three possible dads: Sam, Bill and Harry.

As the film goes back and forth in time to show how relationships forged in the past resonate in the present, James will play the role of Young Donna. Filling the roles of Young Rosie and Young Tanya are Alexa Davies (A Brilliant Young Mind) and Jessica Keenan Wynn (Broadway’s Beautiful). Young Sam will be played by Jeremy Irvine (War Horse), while Young Bill is Josh Dylan (Allied) and Young Harry is Hugh Skinner (Kill Your Friends).

What I can't seem to figure out is whether or not Meryl Streep's "Donna" is dead? Baranski and Walters speak of her in the past tense and Sophie says she can't have a baby "all alone."

Oh - and then there's Cher, playing Meryl Streep's mother, making quite the grand entrance.

Watch the trailer below.