It would be great if we could stream Bing/Google Maps photorealistic global scenery just like X-Plane. Aerofly would look much better with it.
It would also be nice if paired with a realistic atmosphere where the sky does NOT get so dark at such a low altitude and there is a gentle gradient between blue sky and white in the horizon. Even cirrus clouds do not look that saturated and realistic like real life.
We also would want realistic sunrises and sunsets where you could see the shadow of the planet moving during your flight, this would be so immersive.