Virgin are unable to make up their minds about their hub at Melbourne. First they said that Tullamarine (MEL) was not spacious and it was agreed that a new terminal would be built for them. A few later they said that the planned terminal at MEL was too spacious and they didn't want it.
Then Avalon was offered as a solution and Virgin are now in deep consideration. Which will they choose Tullamarine or Avalon? No one knows.