Amazon renewed Undone for a second season a little more than two months after its premiere[1]. It is set to premiere on April 19th 2022, roughly two and a half years after the first seasons - the considerable period between the seasons is presumably due to the COVID-19 pandemic.
A pre-released clip from the season revealed that Becca too has made time-bending experiences, teasing a team-up of the sisters to explore their abilities and their family's past.