The Jets for sure. At the end of last season most people were talking about a complete rebuild. Scheifele and Hellebuyck were all but gone in most peoples eyes. Everyone knew they were losing Dubois and it was nothing but doom and gloom around Winnipeg. Hell, there was even talk of the team leaving.
Fast forward a year. Chevy pulled off an absolute theft moving Dubois to LA. Scheif and Helle surprised most and signed for another 8 years, Wheeler was bought out, Monahan and Toffoli were brought in, Niederaiter was extended and they became the stingiest defensive team in the league this past season. They have amazing team depth and have a great pipeline of young talent on the way.
With all that said, I don't see how they cant be considered the biggest dark horse this year with a real shot of making some noise in the playoffs.