Mike, thanks for your message buddy
I've checked online (
http://en.wikipedia.org/wiki/ISO_week_date) and Week 38 is definitely next week (19th September) and obviously Week 39 commences on 26th September.
I contacted my dealer on Thursday and my car was still being shown as "Scheduled for Production" so I guess the UK cars are not being moved forward
Hopefully it'll go into production next week as planned though. Fingers crossed!