I'd switch up the top nine so its Dzingel-Duchene-Boedker, Smith Pageau-Stone and Ryan-Brown-Gaborik.
Boedker and Duchene had some chemistry in Colorado, and he's got wheels. Dzingel plays well with basically anyone on the team.
Smith-Pageau-Stone has shown some solid chemistry in the past, and keeping Stone and Duchene away from each other gives us at least one elite level player on both lines. this is also probably the line that goes out against top lines
Ryan plays better on the left wing than he does on his natural right side in my opinion. Gaborik was injured for most of the season, and he didn't get to play a lot in ottawa, but I liked what I was seeing when he did play. with 21 points in 46 games, he was producing at a rate of just shy of 20 goals and 40 points. if he could even get in that ballpark, that would be great for bottom six scorer. The big problem with this line is that it's slow, and that could be a problem.

Also I doubt Batherson makes the team/

Colin White?

He didn't have good numbers in the AHL or NHL last year, I doubt he makes the team.

Yeah, I was thinking they might split Stone and Duchene, but maybe they play them together to keep them happy. Might be easier to re-sign them if they develop some chemistry and want to keep playing together.

there's definitely merit to that idea, but I think the best way to convince them to stay is to ice the best team they possibly can. Now obviously Dzingel-Duchene-Stone would be the best line they could possibly ice, but that leaves the team with next to no secondary scoring. A second line of Smith-Pageau-Boedker is going to get you, what, 35 goals between the three of them? Now if Brown and Tkachuk show that they are ready to step in to a top six role and put up 2nd line numbers, maybe then you can argue that you swap Stone and Boedker, and role Tkachuk-Brown-Boedker. Also if Bobby Ryan miraculously turns back the clock and becomes the Bobby Ryan of Days gone by, that gives you another legit top six option.

I also think it's important that the sens keep Boedker with Duchene to maximize his value. If he can show he's still that guy who put up 12 points in 18 games with Duchene in Colorado, it would be helpful for the team in the short term, but it would also boost his trade value significantly, should the team decide it's best that they start selling off assets at the deadline.