The news outlets are announcing that a statement from the Mayor may be coming shortly?

From CBS Affiliate KDKA:

At that time he could announce that he will finish out his term, but not run for re-election and retire from politics. Currently he’s locked in a primary election battle with controller Michael Lamb, and Councilman Bill Peduto.

Sources say the mayor could also announce that he is stepping down under the strain of the current federal grand jury investigation of the Pittsburgh Bureau of Police.