Besides creating custom scenery, we are also trying to improve tools for scenery creation and the presentation of the scenery.
Currently the major topic is coping with the relatively high complexity of the scenery. Comparing standard scenery with customised scenery we find an increase of triangle count per scenery tile around factor 10. Taking the tile 3105386 around EDNY (Friedrichshafen), the standard scenery holds only around 2800 triangles, while the customised version of the same tile has around 31.000 triangles.
We are searching for the exact origins of this increase and ways of reducing the graphics load without severly impacting the quality of the scenery.