Warren Spector Leaves Ion Storm/Eidos

GameSpot is reporting that Warren Spector has left Ion Storm, the development studio responsible for the Deus Ex and Thief games. Could this be bad news for the future of either series?
After months of rumors that his role was in flux, Warren Spector has decided to leave Ion Storm. British publisher Eidos, which owns Ion Storm, the studio behind the Deus Ex and Thief franchises, confirmed Spector's departure to GameSpot today. (Eidos announces that Warren Spector has relinquished his role as studio director at Ion Storm," said a spokesperson for the publisher.