Hello. Here are my proposals for Kdenlive. I think there are already enough video editors to do the same things: Cinelerra, Lieves, Pitivi, MainActor, Kino, OpenShot, and Lumiera. Missing an editor specializing in postproduction. I see a good future for Kdenlive in postproduction and restoration. Below are some things I would like to see in future of Kdenlive:
Some postproduction software(non free):
Lustre have demo http://usa.autodesk.com/adsk/servlet...&siteID=123112
Nucoda FilmMaster http://imagesystems.tv/media-bu/products/nucoda.aspx
Scratch have free trial: http://www.assimilateinc.com
SGO Mistika http://www.sgo.es/mistika/
For postproduction i think a good place to find information, scripts, plugins,good support can be found on AviSynth community forum (http://forum.doom9.org),community which working with some of these options already.
Avisynth is a open source non-linear editing system for Windows only.
Look Avisynth in action: http://vimeo.com/2823934
This script is free but must be adapted to Kdenlive.Info and download http://forum.doom9.org/showthread.php?t=144271