This doesn’t appear to be a new studio, as such. EA is restructuring and part of that process appears to be the renaming and expansion of the studio that has most recently been known as Danger Close.
Danger Close has gone through a number of names since it was purchased (as DreamWorks Interactive) back in 2000. It was subsequently merged with EA Pacific and Westwood to become EA Los Angeles. Then it was finally renamed as Danger Close. Now it seems set for some expansion and another rebranding as DICE Los Angeles.