Oval bokeh with 1.33x adapter...
...using a close-up diopter, like you would be having to use with most 2X cinema anamorphics for close focusing and to sharpen up the image not being stopped down.
...more with a Century Optics 1.33x adapter and CU diopter. The SLR Magic lens is already demonstrably sharper at faster apertures, meaning the potential for at least two stops more dramatic ovals.