What I've heard so far: only the 580, which has 9mm stitch width, will have embroidery capabilities, with a module. The 530 and 550QE, will have 5.5mm stitch width. The machines look very similar to the 3 series, except that the 5 series is full-sized and the 3 series are 3/4 sized. The 430, 440, and 640 are to be discontinued.