I feel it is a very big cost too especially if we exit in the first round
As a Wild fan who really likes what the Jets have done this year, I don't think you're going to have a first-round exit, so I think Stastny was a real good pick up for you. And I like the fact that it shows your management is going for it now.
As of now, you'd face the Wild in the first round, and I think you match up pretty well against them. Both teams have good depth at forward, especially with the addition of Stastny, but you have more firepower there. The Wild arguably have a better D core, but your goaltending has been better. Those question marks on D could affect whether you can make a deep run - Ottawa did it largely with great D work and opportunistic goals last year - but with your more relentless (and now deeper) offense, you shouldn't have to rely on just opportunistic goals. It could be some pretty great and exciting hockey to watch if you could go deep.
As far as other potential playoff opponents, maybe tonight will answer some questions about how well you match up against Nashville (a likely second round opponent), and I don't know enough to know how you'd match up if your first round foe is Dallas or St. Louis. Dallas has that same potential for pouring in a lot of goals in a hurry that you do, but has some other question marks that make you wonder if they have what it takes to make a deep run. If you get by the Central foes, I have to think you can keep up with anyone in the Pacific, so it could get fun up there!
But there's one key unknown: You have a fair number of younger players who'd have to play an important part of any deep run in the playoffs. That can go either way. Do they really know how much they're going to have to step it up? Do you have the veteran leadership to teach them that? Can your coaches? Sometimes the young guys just don't know, and it takes a playoff defeat to learn and get that perspective. But Winnipeg has one advantage - super fan support that can inspire especially the young players who tend to rely more on emotion. I saw that in the early 80s, when a young North Star team made a couple deep runs - sure, they had some talent that was starting to come of age, but they really fed off home crowds that understood the game and were going crazy for them, and a general excitement around town about the team. And everyone knows Winnipeg certainly has that, and your building and city will be rocking for them.
If you play the Wild in round 1, I'll get to a game and hope for a win, but honestly won't be disappointed if you take it and then can take out Nashville and whoever wins the Pacific, because I think you have a better chance to go deep than the Wild. I've always liked the Jets as kind of a secondary team to support - when we lost the North Stars, I became a Jets fan, only to see your franchise get torn away like ours did. Maybe it's finally your time! The hockey Gods owe you one, so good luck this spring!