People saying that this game is going to become happy and rainbow covered are exaggerating. The only difference is that now Mickey does not become the Mass Effect 2 Paragon/Renegade Shepard. They have said NOTHING about taking away the steampunk. Do not assume they have until we have more information.
As far as we know, the game still has all the horror it was going to have from the start. Mr. Specter has said time and time again that he wants the game to disturb and frighten kids. I think, that if the concept art is any indicator, he has succeeded.
At the very least, wait until the game comes out and we know more about it to talk about it. We have another year of development time before it is released.
Think about it. Monsters that are steampunk robots with the flesh of Goofy, Jafar, Tigger, Donald and many more thrown in like a patchwork abomination? Yes please.