I think people are selling Wennberg short. Has size, defensively solid, fixture on the PK, 24 yoa .52ppg C over 350 games played. Having a bad season, but he's a solid center. What I'd give up really depends on what they would retain or not retain.
Would trade Fischer for him without hesitation, and I'm not on the trade Fischer train because his value is also low right now.
If Chayka grabs Wennberg and Burakovski without giving up something stupid, I would be over the moon. There are better players put there I'd prefer to add, but those two are young NHL players who are prime buy-low candidates.