OK, lets straight a few things up.
1.TES V is in development for sure and it's been developed longer than a year and a half. Different teams are working on Fallout and on The Elder Scrolls.
2. They will most likely announce it at E3 (I know it's not their style but everything has a first time).
3. You can't possibly know in what region the gameplay will be set so stop talking about that.
4.And yes, we will most likely see a new tes game at the end of this year or beginning/middle 2011.
~ entR
Actually:
1. Everything we know leads to their newest game having been developed since October 2008. A handful of people from Bethesda have said so, and while they may have done some pre-production before then, serious development only started after Fallout 3 was released.
2. Very doubtful. It could happen, but I don't think Bethesda would reveal their new game in a place where so many new games were also being revealed. Maybe a few weeks before E3. In all likelihood, Bethesda will announce something this year. When they will is anyone's guess.
3. Yes, we can. Bethesda trademarked the name Skyrim. Bethesda, or rather, Zenimax, has never trademarked anything from the Elder Scrolls that wasn't used for the title of a game or an expansion. So it's practically guaranteed it will be set there.
4. No, we wont see a TES game anytime this year. With Morrowind, Oblivion and Fallout 3, all of those games took longer than a year to be released after they were announced. Because the game wasn't announced last year, it cannot possibly come out this year.
Please do proper research like some of us have before trying to give us "correct" information.