Mara's death, while the scene itself was bad, does make some sense. You have to realize that Jacen was trying to turn Ben to the Darkside. What better way than to kill his mother? It just so happens that Karen Traviss killed her off. KT hated Mara Jade, and Jedi as a wwhole. She didn't listen to the other authors.
Being a huge Mara Jade fan, I would hate it if they brought her back to life at this point. I would like to see her death scene re-written to give her a better, more fitting death. But since she is dead, and I hate saying this, she should remain dead. Bringing her back wpuld be a huge undertaking. How would it even be done? Luke would not want her to be cloned, so that would eliminate that idea.
Karen didn't hate Mara nor did she take the action against the other author's wishes... everything she did was according to the story-line that was agreed to by LA and all authors that took part in the project... there was no personal motive it was simply a plot point they all agreed to that happened to take place during the book in the series she was writing..
kinda getting sick of clueless fans trying to blame authors for things that were approved by people much higher than them...