According to ShowbizSpy, Randy Jackson may have more time to devote to ABDC, since he may be leaving American Idol. This site quotes the National Enquirer, so consider the sources, but here's the story:
"Randy was basically told that there was a very good chance he was not going to be asked back after this season,” a show insider told American tabloid the National Enquirer...Jackson was apparently furious that Cowell, 51, didn’t tell him he was planning to leave the show to launch the American edition of his UK TV talent show The X Factor...“He considered Simon a friend, and not sharing with him was a big letdown. After that, Randy realized things would never be the same around Idol.“His attitude right now is, ‘You can’t fire me because I quit!’"