At one time, I was interested in doing something like that, but I don't think it is a good idea. The reason being that there are too many idiots who claim that the holocaust never happened. I don't want them to be able to point to a novel about the holocaust and say "see! this is a fiction!"
I think art, or poetry, or commentary, or songs even, about the holocaust are good. Not fiction. I think there are many Jews who would agree with me.