Injuries have hampered his development and Coach Sutter didn't see any consistency from him. The emergence of Oliver Kylington pushed Jusso down the depth chart.
Like him or not, Zadorov has played pretty darned good for the Flames this season and Valimaki was unable to get in often enough.
Zadorov - Games 26, ATOI 16:21, Points 6, Plus/Minus -1, BLK's 24, HITS 56, CF% All 56.4, OzS% 61.1.
Flames sent Vali down to play a lot of minutes and until yesterday has been doing quite well (injured in yesterday's game).
At one point Valimaki was projected to be a top 4 guy, but as I said injuries have slowed his progress. Next year will be a make or break year for him and I suspect he'll make the squad out of camp and won't look back.
As far as trade value goes? In just about every major trade the Flames were in on, his name comes up. The answer was typically no. Having said that the Flames (again until recently) have been playing pretty good and with a couple more pieces they may be able to make a push of sorts this post season.
So I wouldn't be surprised to see Valimaki and his potential bundled with another prospect, roster player, or pick(s) and going out at some point.