Quoting: JayTea
They could use Kapanen..
LW next year could be Fiala, Parise, and whoever they keep of Zucker, Greenway, and Donato. RW could be Zuccarello, Kaprizov and Kapanen. Kunin may need to be moved to center if they let Koivu walk or trade Staal. Foligno and Hartman work fine on the 4th line.
That being said, I wouldn't trade Dumba just yet. They have time to hope he finds his game again and ups his value.
They still would be forced to move Kunin to center and trade away both Zucker and Donato to fit Kapanen into the lineup; which is a lateral move at best. If Zucc wasn't here Kapanen would make a lot of sense, but the Wild are stuck with Zucc (and Parise).
Kerfoot they could use (not for Dumba), and only trade away 1 wing. He'd at least fill the 3C hole the team has.
Parise/Staal/Zucc-scoring line 1
Greenway/JEE/Kunin-shutdown line 1
Fiala/Kerfoot/Kaprizov-Scoring line 2
Foligno/Rask/Hartman-shutdown line 2
Donato (or Zucker) as the 13th FWD, or put them in the lineup wherever. They also have Boldy who will need a spot when he's ready (in a year or 2 I'd guess).