Thief 4 - Switched to next-gen consoles?

Every major site is running the rumour that Thief 4 has been switched to next-gen consoles, hence the delay. This would mean a release late next year. From CVG:

That's according to the latest issue of OXM UK, which reports in its gossip section that the long-in-development revamp will likely release late next year, when Xbox 720 (codename 'Durango') is expected to launch.
CVG sources indicate the report is accurate.

More information.

well it definitely would've had a ton of competition without the delay.. this way you at least hope there won't be a hitman and Dishonored name present

Not to mention the level and city sizes won't be limited by current gen console limitations (for PC gamers).

What is 'new' about Thief 4? I mean, game play-wise? I played 1, 2, and 3, but ran out of enthusiasm before finishing 3. Frankly, playing another Thief game simply doesn't sound that interesting, unless they're doing something new…