Another year of fierce competition in the Central Division - the best in hockey. The Blues could have the best goaltending of them all.
Non-playoff teams - Chicago and Minnesota. Both have a chance but will be tough. Each team is in transition, trying to piece together their team by filling holes.
Up and comers - Colorado and Dallas - strong cores, good young players and prospects, probably just beginning to build solid contenders.
Window closing - Winnipeg and Nashville - each could make it all the way but time is starting to run out.
Several small points I disagree with.
First, the Blues don't have the best goaltending in the division. Unequivocally I view Dallas as having this distinction. Bishop when healthy is a wall and the Bishop/Khudobin vs Binnington/Allen tandem isn't particularly close.
Secondly, both Colorado and Dallas are not beginning to build contenders, they need to add depth to be considered contenders. As you say, the cores are there, as is the young talent and prospects - both teams windows are open. They need a few bottom 6 upgrades and maybe a vet dman each to be top contenders (or another season to finish getting their young players up to speed).
Lastly, while both Winnipeg and Nashville are watching their windows close, Winnipeg needs better dmen to be a true playoff threat and I'm not sold on either starter getting them through 4 rounds. Last season, San Jose got to the conference finals despite sub-par goaltending on the back of a killer offence, Winnipeg is capable of the same. Nashville needs more scoring to get through the playoffs, I'm not sure if Duchene is that answer as an offence driving 2C. I suspect both will be in the 3-5 spots in division - this is the slow decline for Winnipeg and Nashville is going to be the Minnesota of the division stuck making the playoffs, but not going far for years barring a huge surge in their scoring. In short, I don't think either has what it takes to go all the way.