Stellan Skarsgård weighs in on Meryl Streep returning in 'Mamma Mia 3'It is not the first time, but the rumour is beginning to make rounds that Meryl Streep, who played Donna, might return in Mamma Mia 3.But the problem is Donna died in 2018 in the sequel Mamma Mia! Here We Go Again....