What Baker's role will be is unknown, which shouldn't come as a surprise to anyone. I think we know less about this film than we did about The Tree of Life. Although it appears as if we won't have to wait as long to see this one. The film has already been shot and shopped for buyers, which means that Malick is likely hunkered down in the editing room. He spent something like three years piecing together The Tree of Life, so I wouldn't start counting down the days just yet.
Somebody must've spiked Malick's coffee with elephant sized shots of B-12 because there are rumors of him prepping another film which is not the Brad Pitt narrated documentary, Voyage of Time. Whoever is responsible for this sudden burst of Malick productivity deserves a pat on the back and a round of drinks.