It will be a person who is male... or female... or Russel Grant. They will be celebrating a birthday this year and their name will begin with a.... letter of the alphabet.
This information was brought to you by mystical forces and by the power of Greyskull. Your actual mileage may vary, consult your user manual for any spacecraft travelling over twelve parsecs without stopping. In the event of a water landing, Tungro has been designed to act as a flotation device.
In all seriousness, guests will be announced with some fanfare so be prepared for sensational news. A shining new era... oh fine I'll get my coat.