Durai,
It happened to me like that.
first 485 LUD is changed. 11/19, 11/22, 11/24. then EAD's changed 11/29,11/30.
after one week, 485 changed, 12/06,12/07,12/08, message changed.
So may be in your case, your message may be changed early next week.
Gcard600