The reason why people submitting in the old rule are not processed earlier is because the previous rules were very laxed in term of financial requirements and other conditions of sponsor, there is a high risk that the sponsor will not be able to support the parents financially and the application is less appealing economically to Canada. If Express Entry can be processed in 6 months or less from start to end (landing) then there is no reason why they cannot process these applications from parents sponsorship in 2010. It is just a matter of priority.