Also you have to consider that ROS only has an exclusive period of 3 months with the Copper project. The announcement was released on 27 May 2011. 3 months from then would be 27 August.
Todays announcement says the suspension could last for 6 to 8 weeks. If it lasts 8 weeks the date would be 17 August 2011
There is not alot of breathing space IMO.