I'm not sure just how cunning this maneuver will turn out to be in the long run. I'm not at all convinced the Dems will win in the courts. They may get a few lower court victories, but those will be harder to sustain as the appeal process continues.
The other thing this delay may bring into play is ... Bill Barr as a significant player. Declassification, revelations of investigative actions, and possible high profile legal actions such as indictments, could significantly tilt the playing field for the president. We shall see. If the delay expands Barr's room to maneuver this Dem ploy could turn out to not be cunning at all.
UPDATE 1: Laura Ingraham says We The People were "punked" by the Dems with this delayed impeachment ploy. IMO, Laura has a point. Most people with any sense of fair play--remember that concept?--will be outraged. I suspect that this won't wash that well with the courts, either.
I wish I could have heard what Robert Ray had to say--you'll see him waiting in the wings. He's usually very good.
And I suspect this will increasingly resonate with We The People:
UPDATE 2: Mitch McConnell says he'll speak in the Senate at 9:30 tomorrow morning. It'll be interesting to see how he reacts to the Imperious Nan and her demands.