CSM have promised that future upgrades will be downloadable from the website again, as all the previous ones have been. They look quite a bit smarter than v9.1 but are otherwise very similar. However they are still fairly clunky polygon graphics. The background scenery is not much different in the supplied airfields though there seem to be more variations available if you want to create your own and you can also modify the colours of the various bits and pieces. Customising both planes and flying fields is now a lot easier, at least the instructions look a lot more straighforward .
Screen shots are now available on a separate pictures page.
So you can swap your favorite model setups even easier now. I have now converted all the 9.1 models on the Swap site . I'll have all models available in both versions for as long as possible for anyone who hasn't upgraded to v10 yet. One fascinating addition is the night flying scenario. I suspect this works best with helicopters which are reasonably static.