Curious, What do you mean better coastline and Clouds?
I know these are not the best cloud effects but they are still clouds. Last night I was into plenty of multi layer clouds when I was dogfighting in the P51. I have even seen clouds that were touching the land like rain or fog.
I do like the idea of weather effects. In Airwarrior we had S.A.C. which allowed terrain to be change to your liking. I liked flying snowy terrain but I usually changed with the seasons. With today's technology, weather effects and even terrain changes (Snow, Sand, etc.) could be possible game wide.
Good list overall as you listed some I decided not to do on my wishlist.
>S<