Some other new/worded slightly different/funny tidbits about the Panel from other sites.
CBR:
"Asked whether an Ultimate Ultron would be appearing, Barber and Lowe acknowledged that Hank Pym is now designing robots. He back-engineered Vision II from the first Ultimate version of the Vision, who was Herald to Galactus. When Hank Pym builds a robot, it can't go well."
Comicon:
"The Ultimate Defenders will appear in the Ultimates annual. This annual will also give a taste of what an "Ultimate SHIELD" comic would be like."
"The Ultimate X-Men annual will include Juggernaut and will account for what happened to Las Vegas after it was destroyed in Ultimate FF."
"The interior art shows Ben Grimm winning a violent argument with a dinosaur. The storyline behind the art is that terrorists have gone back in time to capture the first creature to crawl from the sea and hold it for ransom. The FF have gone back to stop them. According to John Barber on the panel, "They don't succeed. All Ultimate titles will be blank from now on. This will help us keep on schedule."
"The covers of Ultimate Iron Man 3 and 4 have what seem to be progressively older versions of Tony Stark. There will be two five-issue miniseries written by Orson Scott Card, but the artist on the second series has not yet been fixed. Card was given a free hand to develop Tony Stark's history. There are apparently revelations coming about how Stark's "powers" work that will make Ultimate Iron Man a more tragic figure. On a related note, since Iron Man's Ultimate debut was in a Marvel Team Up story that is inconsistent with later appearances, the panel promised that continuity issues with the MTU stories will be resolved."
"The last Ultimate X-Men arc with the current creative team is called "Magnetic North," and features Lorna Dane and Magneto. There will also be a Havok-Cyclops fight. Xavier's cat Mystique will return in issue 65. Ultimate Apocalypse will show up "by the time Vaughn stops working on the book ... at all."
"The Ultimates will get hints that the Hulk survived his execution. Hank Pym has been seen working on an Ant-Man helmet; he needs a new identity, since the government holds the copyright on Giant-Man. The sanity of Thor, the identity of the Ultimates' traitor, and the results of Pym's work with robotics will be addressed in Ultimates 2 #s 7-12."
"Nick Fury's grumbling that it's time for Peter Parker to lose his powers signals a rising storyline. Fury doesn't want any superhumans not controlled by the government, and the Hobgoblin incident has shown Fury how hard Spider-Man is to control."