No I don't think so. Disney does themed entertainment not amusement entertainment. People don't come to Disney for Cedar Fair or Six Flags attractions they come to be put in the worlds of stories.
I totally agree with this and I wouldn't not want to see Disney trying to compete in the same space that Cedar Fair and Six Flags do. They are catering to the thrill junky who wants a new thrill every other year. I would not want to see Disney building cheap, lightly themed coasters.