At this point, I'd be more concerned with improving the optics: lenses that don't smudge and don't have the Fresnel lens flaring, or perhaps even with a wider field of view.
You can't "emulate lenses on a screen" unless it's a lightfield display (which it's not).
With higher resolution you could correct for more lens distortion, but you still need lenses, and you won't be able to fix lens flare on fresnel lenses.
