Delays for displays on the Apple Store

You know we like to watch the stated delivering delays on the [French] Apple Store, as such informations help lifting a part of the curtain that hides what's to come.
The 17" displays are still available immediately, yet the 20 and 23" are due to ship within 6 to 8 days.
Might be many reasons to this, yet as there's also a promotion on displays which has just come to an end, new displays really might be at hand.