Is there any reason to believe Madigan would particularly want to take revenge on Newman? He backed Lipinski, but it's not like Newman explicitly ran against Madigan or like Madigan has any objection to working with relatively liberal politicians.
(Image cred: Madigan circulator(?))
The thing about Chicago is that all politics are hyper-local. Madigan does not particularly care about what people on the North Shore get up to or whatever kind of progressive freaks they promote, so long as they can be reliably defeated when it comes to the important things in life (witness the political disappearance of Scott Drury, the only Democratic state rep to vote against Madigan for Speaker, as well as the utter failure of the Dan Biss 4 Gov campaign). But having an independent in Congress representing the 13th Ward?? Not acceptable!
Yes, but that shows Madigan campaigned against Newman. It doesn't suggest Newman made opposing Madigan an important part of her campaign (talking about defeating 'the machine' is pretty generic.) The machine doesn't bear grudges when it's not worthwhile - Rush challenged Daley in the mayoral election, but that hasn't harmed Rush's relationship with the machine since, because it hasn't been worth expending political capital trying to do it.
Trying to get revenge on Newman just seems like a waste of time when you can just give her a district consisting of areas outside Cook and the bits of Cook where the machine has least reach, then forget about her.