Zeiss has a DLP projector (called Velvet) where they focus the light from one DLP chip pixel for pixel onto another DLP chip to achieve 2.5 million native contrast - so yes it's possible. But taking a high resolution projector and converting it into two low resolution projectors doesn't sound like it would ever be a cost effective design decision.
"There are painters who transform the sun into a yellow spot, but there are others who, with the help of their art and their intelligence, transform a yellow spot into the sun." Pablo Picasso