Things i'd love to see in SP2:

[oak shoal]

1. better flight physics

2. a smooth camera

3. a better damage system

4. more realistic explosions

5. maybe birdstrikes...?

6. the ability to make custom missiles and bombs

7. some grass and random rocks to fill the map

8. customizable decals

these would be really cool!!!

[gusty folio]

From what we can see in the leaks and steam page, flight phisics are getting a + camera seems similar to sp1 damage seems to be a bit more advanced with explosions and there seems to be a way to add decals plus the map will have flora

[oak shoal]

it's looking very good so far

[gusty folio]

While i doubt custom missiles and birdstrikes are gonna be a thing i do hope for systems to make the game even more beautiful