That's correct, if you apply for the 380 you will only fly the 380. And yes, you may only come back to the rest of the fleet after 24 months.
Destinations will be limited for a very long time, plus seniority may be affected, you can't buddy bid with a mate that's not on the fleet.
The company will receive 5 A380 by December, that means it needs roughly 950 crew... just over 10% of the crew that there is.
Will they reach the number they need?
Destinations: JFK (starting 01/10), LHR (01/12), SYD+MEL (01/02/09), CDG (???)