I went to my Lego store yesterday (and had not read any of this discussion at that point) and was just shopping around to see how to take advantage of double points. Over where modulars are kept, the plastic display only showed the Pet Shop and the sign next to it indicated that the PS & TH should be in that case. There were no THs out on the shelves. Confused I asked a clerk if it had retired and he told he had, but he would check the back if I was interested. Sure I said. He came back and reported that they had 2 in stock. The one he brought out had some box damage and the seals were slightly lose so another clerk went back and got me the other box and it was in perfect condition. Also, when I checked last night LEGO Shop at Home indicated that these were sold out.
To me that sounds like this sucker is gone and EOLed. Just thought I'd report the little I knew.