Well....temporarily at any rate.!
Speaking to one of the sales reps at a 991 launch before Christmas, he said that when the new Boxster is released in March, Cayman production will stop.
The new Cayman won't appear until the Frankfurt Show in September - at the earliest - so it might present a "sales opportunity" if you're thinking of selling in the coming months as the dealer stock becomes depleted.
Some production assembly is being switched from the Valmet company in Finland to the Austrian company Steyr, so this may account in part for the temporary cessation.
Jeff