But that's the key part that everyone misses. When the NHL created the recapture penalty, what it ultimately did was ensure that the player WOULD NOT retire because now they can get the final few million dollars of that contract. Just like Hossa and Zett. Both on LTIR. None of the guys who signed these back diving contracts have retired. Guys were bought out like Lecavalier, Bryz, Erhroff, Richards, etc via the amnesty buyout. Others ended up on LTIR like Hossa, Franzen, Zett, etc. Only teams eating a recapture are NJ because Kovy left to the KHL and LA with M. Richards because they tried to terminate his contract and had to reach a settlement with him. But no one has retired.
Loungo, like you said still has $3.6 million owed to him. If he retires he doesn't get that money, which he is entitled to.
The dynamic for the Panthers is that Luongo could very well be the most recognizable Panther right now, since he's been with the franchise for a decade. If he is placed on their LTIR, he'd likely end up doing some type of community relations work for them. For salary, the Canucks are picking up $800K of it annually, so the Panthers owe only $1.2 million of the remaining $3.6 million. So, they would be paying $400K per year for that position.
Main issue would be the cap. Panthers are currently set to be at $62 million for next season. So, they have $20 million to spend if they wish. They have 11 UFA/RFA on their roster. Outside of say Petrovic, who is UFA ( and likely signs for $3 million plus elsewhere) I don't see anyone who is due a big increase. They have 14 players including Luongo signed for next season to make that $62 million cap. So, take Lu out and it's 13 players. They need to sign 10 more guys for $20 million, but all fo these guys are non top 6 F and non top 4 D.