Unless its sign & trade... NO WAY Lombardo does that for a possible rental. Lombardi is not Taylor.
Now, would I do JJ/Schenn/Teubert/1st for a Kovy thats signed long-term at a contract we can live with... thats essentially 4 1st round picks. And I would probably say YES, I would.
JJ has been mediocore at best. and there's NO guarantee Schenn or Teubert ever become stars. Same goes for the 1st which is probably going to be in the 15-20 range of the 1st round.
Of course, I'd rather offer a different package, something such as:
JJ, Teubert, Purcell, Lewis, 1st, 2nd.
I'd try to keep Schenn if at all possible, and would offer Frolov, but if push comes to shove, I make the deal. Kovy is 26, a bonafide sniper & star player. I'm convinced a player of his quality would be a major difference maker.