The long awaited sequel will apparently release on Xbox 720 and PS4 next year.
Thief 4 will allegedly miss out on the current generation of consoles, and will instead launch late next year on Xbox 720 and PS4.
In the latest issue of OXM (via CVG), reports in the gossip section of the mag suggest that the long awaited sequel will be released to coincide with the launch of Microsoft's new console.
We haven't heard much about the title since it was first announced way back in May 2009, when the game's official site also launched. No new info has appeared on the site since then, but in January this year it was revealed that developer Eidos Montreal was recruiting for a next gen action adventure game with a focus on "stealth". While many assumed this referred to the surely-inevitable next entry in the Deus Ex series, it seems possible that it may in fact have referred to Thief 4.
At this stage the report appears to be nothing more than speculation, though CVG has claimed to have heard similar rumblings from unverified sources. We've reached out to Square Enix for comment, and will update the story as we know more.