Donation Perks

I just want to ask if I donate can I skip queuing for more than 30 days in this realm.

Because I read it here:
http://forum.warmane.com/showthread.php?t=307442

That you need to spend 5 coins for Lordaeron every 30 days for it to continue. What about in this realm?

Thanks in advance!

Yes you can. Once donated, you can skip queue forever on Icecrown and all other realms. The only exception is indeed Lordaeron, as you stated.