If I'm Ottawa I have to decide what I'm doing with the direction of that team before this years draft and if it's the direction of trading Karlsson and rebuilding then giving up the 4th overall pick this year is the way I would prefer to go I think. I also believe that Colorado getting #4 this year would be preferable for them than gambling on next years pick location. The question then becomes would Colorado be willing to give up anything to get the 4th overall pick instead of gambling on the pick next year.
If I'm Ottawa and decide that we're trading Karlsson and rebuilding then I've giving up 4th overall assuming Dahlin, Svech, and Zadina are gone, and hoping I can pry a 2nd out of the Avs to do it. I don't think you can decide to rebuild not owning that pick, the optics of it aren't great. Not owning it would put pressure on them to compete which could be the bad decision if Karlsson won't stay.
The mechanics of the deal would be a bit weird as I'm not sure you could just do it the way of here's a pick to sway you into doing this(which may be possible with future consideration wording), but the workaround could just be, Ottawa keeps their 2018 pick officially which then officially transfers the 2019 pick to Colorado, and then the trade goes 4th overall to Colorado for 2019 OTT 1st + 47th overall
I'm a neutral party, but I'm curious, Avs fans, would you prefer Ottawa keep their pick this year, and take the gamble on the 2019 pick, or would you prefer 4th overall? And if you'd prefer 4th overall would you be willing to add anything(a pick of any kind) to ensure the Sens would take that route?