The knock with Kassian playing with the Sedins back then was that he was scoring, but taking away from them (Daniel) scoring the goals. Well, Daniel has been the set up guy since his head injury, so is this no longer a problem?
I think there is a small bit of evidence that should suggest we just keep Kassian with the Sedins and give them a hugely disproportionate number of offensive zone starts and see if Kassian will just keep scoring goals as their winger. I'm not going to dig up the stats, but someone may know a fast way - how many goals/60min (career) has Kassian scored when playing with the Sedins?
Let's be honest - if this is Kassian's one and only niche, but it produces at the rate that he has on their wing, why not? Just play him there. Boost his confidence. Boost his value. Protect the Sedins. Divide the toughness, the grit, the size. Whatever. Just play him beside the Sedins until he falters (which he may or may not do).
Put Burrows beside Vrbata and call it a second line, and take Kassian out of the bottom 6. Make the Kassian pom-pom wavers happy. Win-Win-Win if you ask me. That's ...#tri-winning
Sedin - Sedin - Kassian
Burrows - Bonino - Vrbata
Matthias - Richardson - Hansen/Dorsett/Vey
Kenins - Horvat - Hansen/Dorsett/Vey
Dorsett/Vey
EDIT: forgot about Higgins. Can he play RW?
Next, figure out that cluster**** defence.