Sure, but we also have Dvorak, Armia, and Pezzetta as pending UFAs and I think we're getting close to the point they're going to try and dump one of Anderson or Gallagher next summer as well, it's not like there won't be any spots available or that it would be a terrible thing for Beck/Kapanen to spend some time as a winger like Suzuki did.
I don't really have a strong feeling about it either way. There's merit to just trading him and moving on from a 28 year old bottom six C but I also don't really think it's crazy to sign him for a couple years to have depth and a safety blanket for some of the young guys (and force them to beat a pretty solid NHL vet to win a spot).
Next season:
Caufield - Suzuki - Slaf
Laine - Dach - Demidov
Roy - Beck - Newhook
Gallagher - Kapanen - Anderson
There is no spot for Evans. The lineup is full, and Evans isn't going to sign to be a 13th forward.
Signing Evans isn't going to force Kapanen/Beck to beat him. He's just going to take away their spot in the lineup.
Gallagher and Anderson will need retention to be moved, so I don't see Hughes trading them with 2 years left on their contract to make room for a 29-year-old Evans. The only way Hughes trade them that early is if there is a prospect who forces their hand.
There are too many prospects close to becoming NHL players, so re-signing any of Dvorak, Evans, Savard, or Armia to a multi-year contract doesn't make sense.