Lohan is so far in the hole that I just can't see her becoming a huge bankable star again. She keeps getting into all kinds of shit and being a pain in the ass. Remember when she wrote "fuck you" on her fingernail and had it pointed toward the judge. I can't see most major directors wanting to work with her right now.
She was lucky she was able to get to work with a legend like Robert Altman before her career went to shit. A Prairie Home Companion is the best movie she's done.