Company policy is upgrades on 320 only, and there will be a fleet freeze for at least 2 years, but no additional bond. In the past there were upgrades on the widebodys but since the 320 Capt started complaining they made all upgrades on 320 to push the 320 captains to the bigger fleets.
By the way nobody has transfered from the 320 fleet to anything else in over a year. All upgrades stopped as well until mid 2010. The airplane you get offerred in your congrats letter is not optional, its a take it or leave it deal. By the way in last 2 weeks out of approx 15 interviewies, only 1 or 2 guys got job offers.