It's exciting that you are going to focus on enhancing the visual appeal of XP in XP10. "Eye Candy" enhancements are something that will be very effective at drawing in new XP users and developers too!

Might I suggest some areas where I think improvements can be made.

– Updated GUI, it looks a little dated in XP9.

– FSX really excels at replacable ground, water and cloud textures ( eg REX, GEX and FTX). How incredible XP10 would look if its textures could be replaced by 3rd parties like in FSX!

– Seasonal textures. Even if you cant provide the actual winter/autumn/spring textures at least adding support for seasonal textures so that 3rd parties can provide them.

– Cockpit shadows. Already the CRJ200 shows that dynamic lighting in XP9 exceeds whats possible with FSX. Adding cockpit shadows in XP10 would be the icing on the cake!

– Maybe also icing, fogging and rain effects on windows

– Please, please, please increase max visible range from 25NM. Maybe make it a slider of 25,50,75,100NM options (and default to 25). As the power of CPU/GPUs increase I really think some top end machines can easily handle more than 25NM. To me XP9 can feel a little claustrophobic sometimes especially at high altitude, 25NM is just not enough.

XP9 is a fantastic achievement, congratulations!

XP10 promises to be a real milestone in flight simulation software.