We seem destined to have a Thief 4 announcement coming May 11th. Eidos Montreal are dropping hints all over the place that the fourth part in the franchise is in development.
The first hint comes with the picture at the top of this post which comes straight from the Eidos Montreal website. The writing is very much in classic Thief writing.
The second comes via friend of The Reticule, Seniath who has nabbed a picture from the latest issue of Edge which reveals the date for the announcement of Eidos’ next game.
Finally PC Gamer’s ‘Spy’ all but reveals in his usual way in the next issue (on sale 7th May) that Eidos Montreal are indeed working on Thief 4. Incidentally the ‘Spy’ alludes that the previous plans for a new Thief to be set in the modern era have been shelved.
Putting this all together it is a nigh on certainty that on May 11th we will see Eidos Montreal announce that they are hard at work on Thief 4 and that it will still take place in its usual setting.