As of this weekend, we're hearing from one member of the hacker group, Anonymous, that they will open their long-awaited can of whoop-ass against Bank of America on Monday. Kossack Badabing provided a great post on this which is now on the DKos rec list.
However, Anonymous is now telling us, directly, via their just-issued "Communication #1" on Saturday evening, that they will announce the commencement of "Operation 'Empire State Rebellion'" on Monday.
Obviously, the two actions are not mutually exclusive--if anything, they're complementary--and it's quite likely that they could announce both initiatives come Monday morning.