That's the part that pisses me off, they could at least show some Common Courtesy and give use some kind of reason.
"They didn't say why it's been delayed either"...
Three things that I can think of.
1.) QC caught a nasty glitch on the encodes at the last minute and have to be reproduce the discs.
2.) Japan forced Funimation to delay it. Reverse importation fears again.
3.) Toonami acquired it and wants to air it before the series gets released on video.
I'm leaning towards number 3 myself, since Toonami likes to keep there acquisitions hush hush until a week before they air them.
Number 1 is doubtful, since they usually will note it (see Rosario + Vampire). Number 2 is quite possible, since Japan has full control of what Funimation can and can not say to the public.