It might be a huge mistake to let him go. He is one of the longest-serving members of the team and has amazing chemistry with Forsling. He’s big, tough, a proven winner, and good at moving the puck.
If they lose him, they’ll have to find a replacement. Burns has a similar profile, but he’s pretty much cooked at this point. I believe Burns being brought in as a 1 year replacement for Ekblad, but it’s a huge downgrade.
Next year, Makar is the only major RHD set to hit UFA, but I highly doubt he’ll leave the Avalanche. I believe losing Ekblad a year earlier would come back to haunt them, even if the Panthers have more cap space to work with by then.
If I had to choose, I’d prioritize keeping Ekblad over Marchand.