This is a replacement piece to Eberle, while being a slight upgrade. Drouin is who MTL is more likely to shop, and if they get the defenseman back that suits the direction they wish to go, they will make this move.
Neither team takes on additional cap in this move.

Turris value is very low right now, especially given his contract. Nashville will look to move him, but he certainly still has bounce back appeal. NYI can take a gamble on him.
NSH is a team built around the game Cizikas plays. He would fit perfectly there.

A discount version of Cizikas.

Here's the big, potentially surprising trade. Pulock would be what WPG naturally wants back, but NYI gives the next best alternative. Two low salary players that fit into WPG's long term plan. Given that there are no insanely high potential prospects in this, Ho Sang is there as a fading potential forward with some NHL potential.

*3rd becomes a 2nd if the Islanders reach the third round of the playoffs OR win their division.