But for who and why? And who gets moved on offense? Our 3rd/4th lines are awesome. Dupers deserves a spot on this roster, too. I just don't know where y ou move people. It's hard to tell at this point.
You asked if Geno's line stuck. So, in that case, if Boychuk - Geno - Neal makes everyone happy, I would leave the 4th line the same, make the 1st line Kunitz - Crosby - X and the 3rd line Cooke - Sutter - Dupuis.
I think Cooke and Sutter have actually been the most effective players on that line while Kennedy has been inconsistent with stretches of downright bad. On top of that, I honestly believe Dupuis would be an upgrade in "consistent" offense. TK also has absolutely no special teams time, the only person in the bottom-6 who can say that. He's not a banger, he's not a scorer, he's not a play maker.
Finally, with regards to TK - his contract is up this year. Yes, he'd still be an RFA, but if there's any hope of getting some value for him during the season, I'd like to try.
With regards to who we could acquire: well obviously if the main NHL roster pieces are Niskanen and TK, you're not getting someone tip-top, but I still think you can add a future or two to those two and get an actual top-6 winger that will better compliment a Kunitz and Crosby duo.