I don't think a high shooting volume guy like Tkachuk helps that line tbh.
Tkachuk is a play driver and volume shooting guy, similar to Meier.
I don't think he makes sense with either Meier-Nico or Jack-Bratt.
You'd be moving either Meier or Tkachuk to line 3 to try and carry that line.
And tbh at that point you're paying a LOT of money and assets (either to Meier or Tkachuk) to have a guy be a 3rd line PP2 guy.
To me a Tkachuk trade would be based on the Matthew trade.
Dougie+Mercer as the core of the offer. Not Nemec
I think there are couple things here.
1)Tkachuk has 48 5v5 goals the past 2 years plus this one. That's good for 16th in the league during that time Palat has 19. That alone is a tremendous difference. He'd also be a net front presence that Palat does not provide and theoretically should work with Bratt and Hughes. How much he provides in terms of winning puck corner puck battles I'm not sure, but while I think Palat has been OK at it, he's not great at it.
2)I think both Meier and Tkachuk are to some extent "play drivers" because they are volume shooters. They skew the stats because they shoot a ton not because they control play, which I think is the more true use of the term. Hamilton is similar. Now I do think Meier is pretty good pushing the puck up ice by himself(though not as good as I had expected)but I doubt that is a Tkachuk strength. Hughes, and Bratt do control play via puck control so I don't see a ton of cross over between them and Tkachuk.
3)If Tkachuk were to come here, and make our 3rd line a dominant and highly productive one, that's as valuable as a guy contributing to an already productive top 6 line. Often you don't see a ton of difference between the top 6 guys and the 3rd liners. Right now Cotter actually averages more 5v5 toi then Bratt.
4)The PP point is a good one. And again this goes back to how good Noesen has been on it as he has already pushed Meier to the 2nd unit. I feel Tkachuk is more similar to Noesen and could potentially play that role, but I would be very wary of messing with that top unit. Although guys who don't play on the top pp unit, like Meier and Mercer, will often get more 5v5 time, who are 2nd and 3rd in 5v5 toi.