Looks washed out for me, but let's wait for the release (lol) before judging.
IMHO, the best terrain in a flight sim is the one on WOFF - never saw something so detailed (few FSX terrains surpasses it)... you can feel the distances involved, I play with 1440p supersampled 4x and it's just beatiful to see.
I can't even imagine what WOFF terrain would look like on a modern engine, with fancy shading and some nice atmospheric effects.