There was surprise and confusion (
this thread as well as the update thread) that the next patch was purely graphics and performance rather than 'the' patch that would bring CoD up to what it should have been at release with numerous bug fixes.
I think/hope that the delay may be due to a change of plans to include more than just graphics performance in the beta. Either that or luthier's definition of "very shortly" is a bit odd! I'm certainly expecting more than graphics performance in the next patch.