I honestly don't see a scenario where Eichel joins this team without Kreider, Trouba or Zibanejad going elsewhere either in that deal or in a different one.
Looking at possible destinations for Kreider (Yeah, I know. NMC. Let's just entertain the thought he'd waive for the right team). Let's look at tax-havens.
- Vegas Golden Knights in 2023: Pacioretty coming off his current contract at age 34. Vegas could be enticed to go after Kreider as a replacement and it would be a good fit for Kreider.
- Dallas Stars in 2022: Similarly to Vegas, Dallas has a player on his way out but a year earlier: Joe Pavelski, who will turn 38 next year. UFA in 2022, Pavelski is not the guy they would look for to help them through their window. Kreider brings something they lose with Pavelski leaving. Kreider and Pavelski are 1 and 2 in goals off deflections. Lethal on the PP when used right.
- Florida Panthers in 2023: Hornqvist will be 36, UFA in 2023. Again, seems like a fit financially and positionally.
- Tampa Bay Lighting in 2023: Replacing Alex Killorn, Kreider only makes 2m more than Killorn. For a team that has Vasilevsky, Hedman and McDonagh on the payroll long-term, Kreider gives them a legit shot at squeezing another cup out of their window that is destined to close right around the time Kreider's contract expires, 4 years later.
Long-shot:
- Nashville Predators has a lot of contracts expiring in 2022. Would Kreider, with 4 more years at that stage, be a target for them to build around?
I don't think Kreider is jumping for joy to waive his NMC but out of the 3, Kreider seems to be the most logical option to pursue trading. Trouba still has a role to play on this team, and trading away Zibanejad to accomodate Eichel is a lateral move.