For those attending PAX, it'll probably be of interest for you to know that Hothead will be showcasing the DeathSpank sequel there. The expo is otherwise saturated with awesome due to the already announced presence by Telltale, who will be letting you take pictures in front of a Delorean, presumably because the replacement of the Back to the Future ride means you can no longer do so at Universal's theme park. Not sure about Costume Quest as I couldn't find THQ's line-up following a diligent fifteen seconds on Google.
Oh, and I checked: Southpeak's PAX line-up contains neither Insecticide's second half nor a keynote apology.
Source: Lucasforums