Icecrown Donation Question

[tonyoo0]

Hi guys, i was reading Premium membership and Donation guide ( http://forum.warmane.com/showthread.php?t=307442 ) on this forum, but i can't find a solution to my question.
This is what is reported on the guide:
"No waiting in the log-in queue on all realms (does not apply to battlegrounds or dungeon finder) (Restricted for Lordaeron)"
"Lordaeron requires 5 coins minimum spent on the marketplace on a SINGLE item in order to permit queue skipping for 30 days."

So my question is:
- A donation done on Icecrown allow me to skip queue FOREVER (on Icecrown realm) or only for 1 month like on Lordareon? Because in the guide this point isn't specified.
I play on Icecrown, so i'm only interested on Icecrown skipping queue.

[Mercy]

If you donate (you don't need to spend coins for Icecrown), you will skip the queue for the rest of eternity. I will make that point more clear in the guide.

[verminslayer]

donate once, skip forever.