I know a Indy Dev doesn't has the resources like many other publisher.
But seriously, I don't think it's possible in todays gaming market to make money with such a outdated looking game (since there is no demo, I can't tell how the gameplay is). It looks like a mix between Half-Life and Quake III. There are free engines available, for example Ogre, which look much better. And you get even shadows.
But who knows? Maybe the gameplay is even better then Deus Ex.