As per usual if you're attending San Diego Comics Convention
there will be a Venture Bros.
panel on Friday, July 19th
(mere days before the season finale). The panel will include Jackson and Doc as well as Patrick Warburton (the voice of Brock). No specifics on the time yet, though the Venture panel is usually the first one of the day. You can keep an eye on Adult Swim's SDCC 2013 events page
for more info on this, signings and other events or just check back here when I have more info.