As the title says, the E3 2012 Awards are now open for voting. I wanted to post this because Dishonored is focused as well. Wheter or not this means that the game will have an E3 demo is uncertain. As we all know, when the previews for the game came out a couple of weeks ago, there was a demo that involved one of the levels of the game. Maybe they will show that same level at E3. That would be a wise choice because sometimes making demos aren't really good decision. They stray from the main part of the development and almost never get used in the final product. So they are something like a side project. But since the team has already made a preview demo, it won't hurt to show it at E3.

This is all speculation on my part and I have no official information of this. With that said, here is the link so all of you can vote: http://www.computerandvideogames.com/347522/cvgs-e3-2012-awards-voting-now-open/
The vote requires no registration whatsoever so you won't have any trouble.