i think it's common knowledge that detroit will have cap trouble next season. it's the only reason why i brought up kronwall. hossa, zetterberg, franzen and samuelsson are ufa. detroit will only sign two of them. hudler is a rfa so he's also going to need a new deal. getting kronwall from detroit shouldnt be to difficult, draft picks and prospects should get it done.
I don't think its quite as bad as you think. Zetterberg will likely take the home town discount, and IMO they would do find losing Frazen with the amount of depth they have.
I really don't see Kronwall as a guy they would move and if they did i think it woudl take more than picks and prospects. i think they would move Stuart or Filippula before they moved Kronwall. And I think it would take more than you suggest, unless those were top rates prospects. Kronwall has one of the better deals for a dman in the NHL IMO.