I contacted Verizon about something else this evening and inquired about the ICS update while I was on the phone with them. A tech support representative named Josh told me that the ICS update for the Rezound has been approved by Verizon, and it is just a matter of time before the release. He said that no one at his level really knows the release date, but believes that it will be "sooner rather than later." He also committed to the fact that the Rezound will get the update and said that Verizon had always committed to this, and never wavered from that commitment. His remarks seem to corroborate the info that is shown in the gottabemoblie post linked above by Tmaybin.
Josh also stated that, based on internal speculation at Verizon, they believe that the reason for the delay in the upgrade is because when the ICS upgrade was almost ready to roll out, as Android 4.0.4., Google released 4.0.5. Verizon thought it better to delay a little bit and just do the upgrade to 4.0.5 directly rather than do another OTA update later. But, again his words, "the changes from 4.0.4 to 4.0.5 were not inconsequential." They took longer to prepare for roll out than Verizon had anticipated.
This is sufficient for me to remain happy with my Rez as is, and wait patiently for the OTA to roll out. I just think that it is unfair for HTC to have to take so much public wrath about this when it was a Verizon decision that caused the delay. But the decision made sense (no pun intended). Verizon's only mistake in the whole thing was that they kept silent about it. If they had simply kept us all informed about the progress of the upgrade there would have probably been fewer irate people griping about it.