All right. Nethaera says that Blizzard can't actually tell us the patch release date before it's out, because they don't want to be wrong. Fortunately, sites like ours don't have any such compunctions, so we're free to speculate on when we might finally see this patch on the live realms. Note that I said speculate -- this is not a guarantee, and we have no secret knowledge save lots and lots of experience at watching Blizzard create, test and release content. Don't use any dates we mention here to plan any vacations from work or family events -- as anyone who's ever tried to log in and do anything significant on patch day will tell you, you're going to be disappointed. And we don't want the patch to come early anyway, so Blizzard can delay as much as they want to. Anyone who complains otherwise has to go into the Octagon with Rossi.
That said, testing is moving relatively smoothly on the PTRs, and lots of the content seems like it's pretty well put together. We aren't nearly done with testing yet, though -- we haven't seen most of the Icecrown raid, and we're still waiting on Halls of Reflection, the 5-man where we'll face Arthas. Gear still needs to go into the game and be tuned. There are around 15 different bosses and encounters in Icecrown (that we know of), and if Blizzard continues on the schedule of testing one or two per week, we're looking at six to eight more weeks of testing for just that content. The PTR itself went up just under a month ago, and it seems that we've got at least a month or, likely, more of testing and updating to be done.