Our group of three is planning to complete the traverse in two long days.
Day One: approach scramble to Torment Basin/Taboo Glacier, Southeast face, bivy. I've been told that there are several suitable bivy spots along the ridge just east of the Southeast face climbing route. (There is also a larger "camp" area on the west col beside Torment- though it doesn't fit into a Southeast face climb).
Day Two: Complete traverse along ridge to Forbidden via West Ridge, Rap/downclimb West Ridge or NE face (TBD), hike out of Boston Basin to the car.
Simulclimbing and efficient teamwork should allow a comfortable climb inside of two days. Of course, other people have done the entire route in one day (we would rather savor the views and enjoy a stellar bivy on the ridge).