Well, Brian La Rose, an MHL analyst at Pro Hockey Rumors did a mailbag article. One user offered a simple, straight up, one-for-one trade.
And the user had pretty good reasoning, too. Panarin is older; Marner is younger. They both would've had 100+ points if Mitch hadn't gotten injured. The user also says that trading Panarin would open up the left wing spot for Alexis Lafrenaire, who desperately needs a break sooner rather than later.