With panthers already flew the flames for tkachuk, they'll need to add. Sens know what happen.

If I was Florida and this was a possibility, even if Ottawa took Pinto off I'd still make the trade.
Losing Knight doesn't hurt IMO because Guzda is still there
Reinhart is having a crazy great season but, he is 4yrs older than Brady.
Lundell I think would be a very good #2 center for Florida in the not too distant future but, to reunite the Bros, it's worth it to me.

IMO the value is their but, Ottawa doesn't neccessarily need anything in the trade.
Tkachik is younger and will probably end up being better than Reinhart career wise
Knight is considered a better prospect and probably still is but, Ottawa does have a good one in Sogaard
Lundell I think will be a very good top6 2way center but, Ottawa already has Stutzle, Norris and Pinto that if\when fully healthy and not suspended will make one of the strongest center trios in the league

Reinhart isn't really an asset to Sens in the trade. They can spend that 8.25m on any UFA next summer.