Natalie Portman has taken time off acting since giving birth to her son Aleph last June. This year could mark her return, however. There's Alan Taylor's Thor 2 on the horizon, but there's another possibility as well.
While the Wachowskis will be busy in post with their adaptation of Cloud Atlas co-directed by Tom Tykwer, they'd like to start shooting a new science fiction film called Jupiter Ascending in the fall. The directors are interested in reteaming with Portman for the film; she previously appeared in the adaptation of V for Vendetta that they wrote and produced.
While Portman mulls this over, she's also planning a veganism documentary based on Jonathan Safran Foer's non-fiction book Eating Animals. (Foer is also the author of Everything is Illuminated and Extremely Loud and Incredibly Close.) Foer mentioned in an interview last summer, "She wants to make a very personal documentary. She contacted me, she told me that she loved the book. I know her now, I will help her eventually, but it will be her vision. She's only at the very beginning."