As much as I like Schenn, Tolivanen (who we would have drafted with the 2017 pick) and the 2018 11th OA pick is probably worth more, perhaps quite a bit more, than Schenn.
Toli alone is arguably a better prospect than either Thomas or Kyrou (probably will join the Preds in a few weeks)...looks to be cream of the crop. Add the 2018 11th OA and it really doesn't seem like a close call....no matter how much we like Schenn's leadership.
Ask yourself this: would you trade Thomas and the 11th OA for Schenn? Again, Toli looks even better than Thomas or Kyrou right now. ("Tolvanen
scored 19 goals and recorded 36 points in 49 games for Jokerit this season, the best numbers for a player 19 and younger in KHL history,
per Elite Prospects." )
As for your question, I would definitely reverse the trade if I could at this moment....and I like Schenn very much...it's just that I value Toli and the 11th OA pick more considering where we are as a team.