I think it still points to the same thing...when the gearbox bearings wear, the gap called the 'meshing clearance' between the gear cogs opens up a bit and the result is a whine. I've heard that Scooby boxes tend to do this, but its not a car I'm very familiar with at all. One thing though - it shouldn't get worse quickly but obviously keep an eye (sorry ear) on it.
John
July 2009