Sorry, had to jump in here... I do have to agree a bit with the original comment and kind of think I know where the poster was coming from. I admit that when I first heard of them "upgrading" POTC I was aghast and horrified that they would ruin the integrity of the classic and original ride. And of course when the movie for HM came out I was again fearful that it would somehow make it's way into the ride.
I understand upgrades need to be made to keep things running smoothly and to keep the public interested. I admit I've never seen the Skellington version (nor have I seen the updated Pirates yet), but Skellington to me should either be only seasonal or maybe get his own special place in the kingdom. I loved the movie, and am probably it's biggest fan... BUT - I am also very keen to keep the "original" HM around. It was there in the beginning and is one of my fondest memories from my childhood trip there. It's stuck with me forever. That's just my opinion. That's kind of the way I feel about the whole Pirates thing as well, but I'll see in October what I think - maybe I'll change my mind!
And as for the other rides you've mentioned... I think that's a totally different point all together! Those rides were DESIGNED with certain characters in mind. Let each ride be it's own "entity" if you will. I was absolutely crushed when Toad's was gone the last time I went. Seriously! But - um - what if they threw in Roger Rabbit in the middle of it just to keep more people coming... just doesn't seem right does it? Like I said before, Skellington is worthy of his own ride in my opinion - especially since in my mind, he has absolutely nothing to do with HM in the first place. I like HM as it is - and necessary upgrades are all I'd really want to see done. But hey, I'm not the one funding it... so who am I to say. Pirates was a different story since they based it on that ride - so it makes sense... though I know many people (along with myself) not sure if it will enhance the ride or not. I can't wait to find out.
Sorry about the babble, just wanted to add my two cents.