Details are slim at this time, with only a logo to go on and a quote from the studio's GM, Stephane D'Astous:
"Were in the early development stages for Thief 4, but this is an incredibly ambitious project and a very exciting one. It's too early for us to offer any specific game details, right now we are focused on recruiting the very best talent to join the core team at the studio and help us make, what we believe will be one of the most exciting games on the market."
This brings another sequel to Eidos, which was recently acquired by Square Enix. The "Life President" of Eidos, Ian Livingstone, also recently confirmed that new games in the Tomb Raider, Hitman, and Kane & Lynch series are also in the works across various Eidos-affiliated developers.