Known Facts:
1.) TES:V has not been announced
2.)Bethesda has a trademark for Skyrim
3.)A Bethesda employee stated that Quakecon is a good place to announce games
Based on these facts there are very few conclusions that can be drawn. The Skyrim trademark does not mean a game is being developed only that they "are protecting their interests". Meaning it may only be being used to keep anyone else from using it. As for the statement about quakecon it also means nothing more than it says. TES games are not by any means the only games bethesda deals with. I too was looking forward to this past GI reveal being TES:V but I'm forced to take a step back now and look at the speculation we were so certain of and I believe it was more or less just hyping each others Ideas so much that we took possibilities(some which made perfect sense) and warped them into our own certainties.
Given all that:
1.)TES:V is probably being developed but not for certain
2.)As of now Skyrim is only a possibility of the next game (although the dishonored trademark intrigues me)
3.)We may hear something at quakecon but we have equal or more chance of hearing nothing
I'm sure I've missed some but I don't think too much else can be assumed with out jumping to conclusions
cheers to reasonable speculation :foodndrink:
EDIT:typo