Interesting if it were to come off.... I think its safe to say that over the next few years we will see a passenger link to China.
However I would suggest that any service would initially come from a China based operator, with Air China being favourite, and probably to Beijing. I believe the approval has been or is currently being sought to operate this service in 2009.
Unless VS have quite a radical re-think about the pace and type of growth of their MAN operation, I'd be surprised to see them operate a pax route to China..... as always though I'd be more than happy to eat my hat if they did