Also forgot to mention. When speaking to the guy at Brum VW he was quite adamant that vw would try and meet the demand by getting gti and gtd variants out as soon as they are built. He mentioned getting them shipped and ready in 3 weeks after being built. This is apparently to get their top end models on the road.
Take that as you will
3 weeks after build isn't exactly fast, it's what we've been typically seeing already.
For the ones we've seen here, they generally get to Emden port via train within 24 hours of plant release and sit at port for 7 to 10 days, missing 3 ships in the meantime. Average sailing time to UK is less than 24 hours (Sheerness/port of Tyne). They then usually sit at arrival port for 3 days before VW even think about transporting them to the dealership. If they gave priority to GTI/GTD (who have already been waiting ages) rather than 10 week build standard Golfs to get them on the next ship, they could easily have them from Wolfsburg to dealership in 7 -10 days.