Pens would be looking for draft picks and prospects. No cap dumps or older roster players.
I, on the other hand, would be completely fine with the Pens retaining 50% on EK AND taking back cap dumps or bad money, barring some notable exceptions.
For example, how much would Edmonton pay in futures to switch Ceci at 3.25M (and some asset to even out the $$$) for EK at 5M? Or how much would Vegas pay to swap Pietro at his salary for EK at 8M? These are just random examples, but I would think any contending team would jump at the chance for a major upgrade when they're within striking distance of the cup.
If some team is willing to take a (still) premiere player in the middle of their contention window, and salary is the only thing holding it back, I dont care. Take the money back. Before EK's value drops off for good. The Pens have shown their direction, clearly, with Hayes. I'm fine embracing that direction with zero stipulations.