If we could get some form of "Find Rivers" would be really cool.
Aside from that I need Fratal Terrains format support, and I guess a plugin can be done with the immenent new version on 1st Oct.
I would like to be able to select or define the contour lines and reset any number to another heightfield, ie. Select the 3,500m down to 3,000 and make them squish down to 1,200-1,500m respectively. The underlying terrain could be reduced or left along with a simple tick of a box.
Being able to export the contour lines as a PPM, PGM, or PBM would be nice, but most of all I'd like a 3dmax import/export more than anything.
Then I'll be able to work with nwn2 and once I've gotten the format, build a plugin and import from fractal terrains to L3DT, edit the data, export to nwn2. Ad when the time is needed to modify landscapes, I import back into L3DT and make the necessary changes, simple.
Maybe these are a big ask and some may even be on the cards, so I shall pop back and keep an eye out