While doing some research on a new TES title, I stumbeled upon the LinkedIn profile of http://www.linkedin.com/pub/christiane-meister/b/135/562.

Her job description is as follows: September 1999 ? Present (10 years 5 months)

Lead Character Animator on Morrowind and Oblivion and Lead Character Artist on future Elderscrolls titles.

I thought it may have been an outdated description written before she knew she'd be working on FO3, but I looked through FO3's credits and her name is nowhere to be found.
Does this mean she has been working on TESV after the completion of Shivering Isles (March 2007) ? I think so.

Sounds like... speculation...

Let ze speculatzing beegiiin!

I sure hope so, the devs seem to keep us in the dark here. Hope that it is going to be cleared up in a while. Since there is no more DLC for any of their games, they should be working on a new title... Hope it is TESV

Nice find, you might want to post it in the http://www.gamesas.com/bgsforums/index.php?showtopic=1064256 thread, because I don't think the moderators will allow this to be a topic of its own.

Correct, there is a topic for this kind of guess work.