Rachel Weisz Joining "The Bourne Legacy"?

It's been rumored that sexy Brit, Rachel Weisz is set to star in the upcoming "Bourne" spin-off, "The Bourne Legacy" alongside Jeremy Renner.
It's yet unknown if this is true or not. It's also unknown which role she'll be going for, but I'm sure everything will be confirmed soon enough, as filming is set to begin later this year.