I've heard they may do one every month (one-offs and not as big), but my sources aren't solid on that one.
They are SOLID about one in June, one group was told to loose 100+ people. Now things may change if BoA people read this board and changes things up...
Like they did in going to Tuesdays from Wednesdays so it may change. But right now June is it and they are looking to get out of severance where possible (i.e. MyWork Employees).