It would be kind of weird if she came back. If Will were to come back, I don't think she should because then there would be too many people coming back from the dead. Well, not dead but near death. But if she doesn't come back, what's going to happen to her restaurant?
That's just her tenure in the main cast. It doesn't prohibit her from returning as a guest. Besides, the IMDb is updated in part by fans. They don't necessarily know.
she was shot three times. the only way jj could bring her back is if syd somehow imagines the whole killing francie thing. she looked dead and i know that things arent always as they seem but like doubleagent11 said it would be too many people coming back from near death or death or whatever.