Kadri is a fantastic hockey player, on a fantastic contract I will never understand the reasoning the thinly veiled bias against him.
That being said, with our backs against the cap wall, and (hypothetically) Tavares/Matthews/Marner/Nylander/Kap all locked up/ more likely to be here long term I can see circumstances where it makes sense to move him in the off-season
Big caveat it has to be on an absolute steal of a replacement player, an effective top 9 guy somewhere below 2 million, ideally an ELC. Ways that could happen I can think of
-Nylander to C, ELC replacement at wing
-Brooks has a big year + either gets an NHL taste and does well or they're ready to gamble
-Aaltonen is tempted back with a roster spot
-the Kadri return features an NHL ready 3C with upside on an ELC or bridge