I don't know if this has already been mentioned but I've just watched the latest episode of SentUamessage on Xbox live and they said that someone from Bethesda has confirmed that TES V is currently in developement. How true this is I don't know but it is a running joke on the show about the number of questions they get for the game. So for them to mention it is promising.

If true, I predict two possible release dates Oct/Nov 2012 or Feb/Mar 2013.

Not true. If you want to speculate about TESV anyway, feel free to do so in the speculation thread.