If it´s possible to buy, or possible to make? Seems the parallel interface is the same as the normal interface for B&W LCDs so you might find some that does that.
You could make a driver chip that will convert serial commands to one of the available interfaces. I might have code for that for Atmega still somewhere.
You could also get a usb to gpio chip, like some FTDI, that you then could command to drive the appropriate pins.
Endless possibilities to get this working, depends on your experience and what you actually want.