Yeah, he'd be a good add, but I can't see LA trading him. Doesn't make a lot, still has a year left, and they have their eyes set on the playoffs as well. Clarke is pushing on their team, but there's no real reason for them to trade Roy this year.
Maybe if the dust around Formenton settles they'd see value in a swap like that, but I doubt they'd want picks/prospects.
The most plausible guy on your list is Dumba, if he'd be willing to waive for Ottawa. Minnesota seems like they might want to make a change just to shake things up, Addison has played really well for them, and it doesn't feel like they're interested in bringing Dumba back next year. With their cap issues, they could be interested in a guy like Lassi Thomson.
With that said, reading the Wild board, it sounds like Dumba has regressed a lot and the consensus is that he's not very good anymore.
- I agree that he'd be plausible, but i don't know if MN will be willing to give Dumba up, as he makes them a better team for the playoffs.
- It's not to shake things, it's because Dumba will be a UFA, and MN has next to no chance to re-sign him, as their cap penalty rises to 15M for the next two years. The decision is whether to keep him for the playoffs, or move him at the TDL. Keeping him is highly unlikely, IMO, but Evason Guerin, love him(hence the "A"). Addison has little to do with it.
- Small sample size... almost the entire team has been bad defensively this year, with the Brodin and Dumba duo being uncharacteristically bad. Having said that, they just had a good game in MTL - with a couple more like that everyone will be back to(sorta) praising them. Let's put it this way. Dumba shows no sign of losing strength, footspeed, or anything else. There is no physical regression. He just had a rough 5 games, as did Hartman, Brodin, Kaprizov(defensively), Foligno, etc. Dumba is a decent or better 2nd pairing RHD who is a strong skater and hitter, and is capable of playing 22-23 minutes per night.
I do think that adding Dumba for a stretch run would make OTT a better team. I don't know the state of your cap, but re-signing him at 7 x 7M would be a pretty risky move, though it's always hard to predict how the cap will increase, and a player will age. 4x6M, or 5x5M...sure, you do that all day long...frankly, if MN can get him at that rate they'd keep him. I just don't know if that's possible in a market that is likely to be increasing this summer.