So lets say that trade talks involving Hamonic continue for the next 2-3 months. Vancouver, Calgary, Winnipeg and Edmonton all have leverage when making a deal for him, so they wait it out until both Hamonic and Snow get desperate. As they wait it out, their offers decrease in value, eventually getting to the point where the main offers include a solid #5 defenseman and parts. The Canucks could come in at this time and make a big offer.
Edler is a guy with a lot of value around the league. The Islanders are looking for a right-handed top-4 defenseman. However, when the other teams start to decrease the value of their packages, they would no longer be getting the top-4 right handed defenseman they wanted. When we make a deal around Edler, we suddenly have the most valuable package. Again, it still doesn't have EXACTLY what they asked for, but Edler could replace Hamonic's minutes. The bottom line is, they get Edler instead or a guy like Wideman or Fayne.
To NYI:
Edler
To VAN:
Hamonic
(or something along those lines)
The Islanders D-core would still be ready for the playoffs. With Leddy as their #1 and Boychuk still capable of playing #2 for a little while, Edler would be a very nice #3. When Boychuk starts to slow down, de Haan could move up (if he's ready).
Leddy - Boychuk
Edler - de Haan
Hickey - Zidlickey
Meanwhile in Vancouver, we lose our #1 defenseman. However you felt about Edler, he was our #1. Hamhuis could step in and fill his minutes for this year, but we would need a replacement.
Hamhuis - Tanev
Bartkowski - Hamonic
Hutton - Sbisa
Tanev would be our #1 with Hamhuis being our #2. However, we could switch off Hamhuis and Hamonic like crazy to reduce the minutes on Hamhuis. Its not the ideal situation, but we would need to do it for Hamonic.
Next year, we would pretty much be forced to resign Hamhuis. With Hutton most likely stepping up, we wouldn't be too bad:
Hamhuis - Tanev
Hutton - Hamonic
Sbisa - Weber/Tryamkin/Pedan
We would have Tryamkin and Briesbois in the system as likely top-4 replacements down the line.