Sure, then let's stick to the schedule with release of Naxxramas and TBC as well. Meaning if AQ delays by 4 months then by that time it will overlap with already released Naxxramas. Obviously that won't happen because once Naxxramas releases nobody will give a **** about AQ anymore.
I don't mind AQ not opening at all. That means people will simply wait for TBC and won't even bother with Naxxramas without any AQ gear ;)
After all, Obnoxious said it himself - if AQ won't open the server won't miss out on anything important and mandatory...only AQ20 and AQ40 raids, which we obviously don't need to release Naxxramas and progress to TBC :o