I find your optimism refreshing. Most people have just given up.
Believe me, having a quite difficult girlfriend who can almost read my mind, a friend who is more like a daughter to me than anything who is a hundred times more difficult, and having worked on my own fiction for over 15 years now. . . you learn patience and optimism quickly. Being on PS3 I am surprised more people haven't learned these concepts.
Will I be upset if for some really odd reason that has no business sense to it at all, not to mention could be open to lawsuits based on false advertisemant, that PS3 will not be getting Dawnguard AND all further DLC plans for PS3 are canceled. . . yes, I will be quite upset. But in the words of the great Adam and Jamie, you must have a plan B. And a plan C, and Plan D, and so forth. Thus I do have a plan B. I just really don't want to have to use it and I am holding out hope for as long as I can, until such point that Bethesda flat out admits what many fear. In my eyes the latest update does not.
In my eyes it means they have had to call in the big guns, aka, Sony. If the great internal developers at Sony can't help them iron this out, then I will finally believe all that 2012 armageddon bullcrap.