Or something with a weird fantasy or sci-fi settings like Dark Sun or Planescape but with available or potentially cheap rights (Mathieu Gaborit's Abyme comes to mind with its highly magical lighter planescape settings)
I'd rather make an 'inquisition RPG' I mentioned a few years back:
"Since the Inquisition game is inspired by Gothic novels like The Manuscript Found in Saragossa and Melmoth the Wanderer, it will feature the old-fashioned magic: pentagrams, rituals, witchcraft, exorcism, summoning, etc. No fireballs and the like.
Imagine dangerous witches (think Planescape’s Ravel – not someone to be crossed lightly or at all) and necromancers, Lucifer corrupting souls and commanding agents, scheming Dukes of Hell straight out of On the Tricks of Demons, a 1563’s best-seller, the Christian faith being a shield against darkness, the Spanish Inquisition fighting a war of attrition, cursed places abandoned for a reason, forbidden knowledge, supernatural creatures, that sort of thing.
Instead of being primarily a combat art, magic will be used to explore this “world of darkness”, survive where the uninitiated will not, protect yourself when dealing with beings who could unmake you with a word, bargain with the Dukes of Hell, etc."