Here's a key quote from this article:

Guilliani: "There will be more financial criminal activity, more proof on the subjects we already have and even bigger deals that are eye-popping. And some personal conduct that has to be brought to the attention of the public to make sure people are safe. And that has to be handled appropriately before it can be discussed."

I'd assume that means arrests - or a shutting down of some in progress operation.

Since it's going to come out tomorrow, it means "handled appropriately" happens today or tomorrow early morning.