Well in training and preseason so far Valverde has been sticking to the 4-3-3. We will likely defend in a 4-4-2 formation off the ball but in attack? we are probably going to see the 4-3-3 for most of the time I reckon with the 4-2-3-1 as well.
It's hard to play 433 with a 442 defensive shape, I think what u meant is a 451 defensive shape. 442 only mostly associates with a 4231 or a diamond 41212.