I haven't seen this anywhere else, but last weekend at Brandons appearance at the book convention in Taiwan, he mentioned that the rights to Emperors Soul have been sold. The movie will be quite different, taking place in a lot of different locations and not just the jail cell that is in the book.
And then bigger news hit. One of the producers (maybe the executive producer?) found out about the Cosmere and proceeded to read all of the books. All of them. Now there is interest in putting into film form, think the Marvel universe in film. This is partly possible because the studio that the rights have been sold to worked on the Iron Man movies.
Yet again, I don't know if this was announced for the first time in Taiwan, but I can't seem to find the announcement anywhere else and thought is let you guys know what he said while out here!