I just talked to a VW Rep in Product Information, and he says that the NB will soldier on as long as sales warrant its production. If 30K + Beetles go out the door annually in The US, as they steadily have since 2002 or so, it will live indefinitely. Conversely, if sales were to dramatically plummet, I'm sure they would re-think things. But as long as there are people like us, I wouldn't worry.
This, however, is the hideous rendering I couldn't locate for awhile. Please, VW, don't do this!!!!! Lose the TT/350Z slope and that horrid spoiler!