Graphics aside (for the 76th time) I found an inspiring paragraph amidst the legal jargon for extending trademarks:
The showing of good cause must include a statement of the applicant's ongoing efforts to make use of the mark in commerce on or in connection with each of the relevant goods or services. Those efforts may include product or service research or development, market research, manufacturing activities, promotional activities, steps to acquire distributors, steps to obtain governmental approval, or other similar activities.
So every time Bethesda has filed for an extension of the trademark 'Skyrim', they had to show evidence that they had been working on the game. Now clearly that is just going to be concept art and story development, for the first couple of extensions at least. But that's proof that TES:V has been in pre-production for over 2 years now, and maybe even more than pre-production.
I think they're further along with the game's development than they're letting on... early 2011 might still be likely.
That's awesome. A huge bit of information there.
That pretty much means that they've got at least a LITTLE something being worked on. As you said, it could be as small as concept art, but if they've continued to renew it, especially as recently as January, they've got to be working on it.
Why not a newer version of Gamebryo? Newer versions of Gamebryo exist, right?
Yes, new versions exist. I expect they'll continue to use Gamebryo, although I think they could do a lot better if they took the time to get a development team together and create their own engine. It worked for Id. It worked for Crytek. They'd get a lot more use out of it, as well, since they created it from the ground up. Gamebryo has its limits, and Bethesda always manages to reach them, it seems.