A new partial trailer for the long-awaited fourth game in the Thief series has popped up online, according to Kotaku. Unfortunately for fans, the trailer comes with intel that implies the game may be stuck in development limbo.

The trailer was made by Goldtooth Creative, an animation studio that's worked on trailers for past Eidos games, including Deus Ex: Human Revolution. According to members of the Goldtooth team, the trailer itself was supposed to debut last December, possibly at the Spike VGAs, but had been put on hold.

On top of that ominous news, a series of online resumes have revealed that members of the Thief 4 team have been leaving Eidos Montreal for other local studios: Lead level designer Adam Alim now works for WB Montreal. 3D Animator Marie-Chantal Larocque left to return to Ubisoft. Audio Director Paul Weir isn't at the studio anymore, either. They're just a few of the staff members who left the studio in the past year, leaving behind an unfinished game four years in the making.

On the other hand, it's entirely possible that the staffers who left the Thief 4 team did so for reasons that have nothing to do with the game's development. Reports from senior staff on the project have said that the game is nearing completion, including an Eidos designers who claims to have worked on the final level in the game.

For now, enjoy the trailer. It looks pretty nice. Unfortunately, unless we hear something in the next few months, it may very well be the last time we see Thief 4.

[Via Kotaku]