All change.
The Minister has announced that early vectoring off the SID/NPRs will in fact be one of the additional freedoms to be available during Phase II of the trials, which start in July (and which will now last 9 months, rather than 3, up to the end of March 2013).
Other new freedoms will include a relaxation of the existing night quota to allow more arrivals before 0600, subject to schedule changes, and an increase of the TEAM limit from 6 to 12 landings per hour.