Zenimax Media have announced the purchase of French developers Arkane Studios, best known for Arx Fatalis (2002) and Dark Messiah of Might & Magic (2006), and the also helped out with art and design on Bioshock 2.
It is unknown what Arkane Studios are working on currently, but they join a stable of elite developers owned by Zenimax Media that includes Bethesda Game Studios and id Software.