Some guys I don't think were mentioned that would be a trade route that I think are intriguing.
1.) Marcus Petersson. 26 year old with 2 more years at 4M. Pit probably would have moved him earlier in the season for a cheaper replacement, but he was bumped up to play alongside Letang and looked really good. May not be available, although Pit has cap issues and if they miss the playoffs, who knows what they will choose to do. Only issue is he is LHD, so not ideal as a Joker replacement on the second line.
2.) Oliver Kylington. Another lefty. 25 years old and not currently playing. Had a great break out year last season playing a lot alongside Tanev, but seemed to play well with whomever Sutter paired him with. There is a lot of mystery about what is going on with him, he is back in Sweden for personal reasons. Not sure if a trade would help bring him back, but I would inquire if I were a GM.
3.) Cale Fleury. 24 year old RHD being squeezed by Seattle's depth. Has had limited NHL opportunity, but has played solid in his chances. Was really great playing for the Checkers last season. Hakstol and Francis gave him 7 minutes in preseason last year and he played fine, but they waived him after the first or second preseason game to sneak him through waivers because they knew they were going to lose him if they played him more, someone would have taken notice, and they had 9 legit NHL defenders from the expansion draft. He plays a physical game. Good at reading plays and making the safe, smart play. Solid skater but not much offense. Can PK and does the little things well, but would be a better complimentary guy to pair with a puck mover. I believe there is still a fair amount of upside there. Will never be a point producer, but has a chance to be a stabilizing defensive presence on the blueline as he matures. Seemed destined to be Soucy's replacement, but then Francis signed Schultz and Soucy moved to the left side, and the Kraken acquired Megna this season, who looks to be the new #6 LHD next year. They have Schultz, Borgen, and Larsson on the right ahead of Fleury. Kraken would also like to get some icetime for Rykar Evans soon in a callup role, and they have Ty Nelson in the OHL who can't play in the AHL, but may be too good to go back to the OHL again next season. All this leaves Fleury, who is an RFA, in a bit of a gray area. Trading for his rights may be the universe's way of balancing things out for the Kraken poaching Borgen.