Dervish (Class)

At one point, the Diablo III team were thinking of making a Dervish class.

One of the names that people on the team liked was “dervish.” They thought, “Aw, there’s never been a dervish in a game,” and I said, “What the hell is a dervish?!” I mean, I know what it is, but it’s a little obscure. So we said it’s fine to take a class and twist the visual expectation or the functionality expectation, but naming wise you should probably give people something that they can really chew on, because that might be the first thing they ever see. And if they’re going to be interested in the class, it’s better not be something that they’ve never heard of.

As the comment shows, the chance of a Dervish class is quite slim. You can read more about this among the other classes of Diablo III. You can also find more media coverage in the wiki as well as a Diablo III Basics page, with a fact sheet of all known info about Diablo III.