So we have now heard that we can expect new content coming in August, and we have heard that the new Operation Terror From Beyond will be "coming soon." Will Terror From Beyond be part of the content releasing in August? Will Nightmare EC be coming out instead, or at the same time? When can we expect to get on the PTS to start testing one or both of these? Hopefully it will be with the next week or so if there is going to be sufficient time to test and tune before a late August release.
If not, we're still waiting for more clarity on what "coming soon" means while GW2 and Mists of Pandaria launch dates are quickly approaching.
My opinion is that they'll release Nightmare mode for EC as well as the revamped Nightmare Modes that they said they were doing for EV and KP as a package deal for the August content. Then 1.4 will be the first F2P patch with Terror from Beyond because it is advertised under the F2P page.
My two cents.