Thief game is coming?

I WAS always a big fan of the Thief game deries on the PC - and it now looks as if the next instalment may be on its way (hopefully on the PS3)!
Eidos Montreal has teased its next project on its official site, and the font delivering the message has led to speculation that the unannounced game could be Thief 4.
At the moment Eidos Montreal is at work on Deus Ex 3, the latest instalment in the espionage first-person series that's been shrouded in mystery, with few details having made it beyond the studio walls.
A post on the developer's official site says the studio's next project will be revealed soon, employing a font familiar to fans of the Thief series. Scant details indeed, but enough to stir forums into a speculating frenzy.
The Thief games are held in high regard, with the last instalment, Deadly Shadows, and were ahead of their time with the whole 'sneak, not shoot' tactics now employed by such greats as Metal Gear Solid.
Here's hoping the rumours will be true.