Well, he has a habit of surprising people. We've been patiently waiting for the publication of his next novel, The Passenger and, instead, Cormac McCarthy has submitted to his publishers a spec film script.
And the surprises continue. It has a contemporary setting, apparently, which is most unusual for McCarthy. Only The Sunset Limited has a contemporary setting. And it has two female lead characters, which is unheard of in McCarthy. (Apparently, The Passenger will also have a strong female lead; perhaps McCarthy is finally finding his feminine side...).
McCarthy has a mixed record with film scripts. The Gardener's Son, on HBS many years ago, was scripted by him and is a fine piece. Cities of The Plain, however, started as a film script and it wasn't too good. And the film script version of No Country For Old Men is simply risible.