well processing time for islamabad for PNP is 2 years... so even you are transferred to london you will be better off. Many applicants who applied in 2009 even did not got medical from islamabad and they are transferred to london...
you will be even ahead of them as london will be faster.
hopefully you will get medical in 2 months max.
good luck..
following is an email i sent to CHC London for which i have not yet received a reply. This is under Saskatchewan nominee program
I sent my application for permanent residency of Canada on Feb, 2010 to Canadian embassy in Islamabad, which was than transferred to London on Jun 30,2010. I know about 5 to 6 people who forwarded their application for permanent residence Canada After April 1, 2010 to Islamabad, and than those files were forwarded to London. Their applications have been reviewed, and they received response from London regarding their Medical and other stuff although they sent their application 2 to 3 month after me to Islamabad. I am however still waiting for a response. It may be policy matter that files received after Apr 1, 2010 are reviewed first and their processing time is different and application forwarded before Apr 1,2010 to Islamabad and transferred by Islamabad to London on Jun 30, 2010 will be reviewed later and their processing time may be different. This seems unfair. I would appreciate if you could please give update regarding this matter.
Thank You,