I had a tool that I used for processing "scene releases". They normally contain the nfo file, which has a link to imdb.
My tool would then process attached files (unrar etc) and then rename them accordingly to imdb name and year.
It also used mediainfo.dll to distinguish fakes and "torrent poisons" and delete them.
If there would be a demand for it, I could revive it back.
This sounds pretty promising -- without knowing too much about the absolute MP state of the art, I'd definitely say I'm interested!
I'd also like to second the opinion that using the folder name for search purposes would be awesome. My preferred download solution gives me automatic robust folder naming, but doesn't touch the .mkv name inside the folder. It's frustrating that MP stumbles over the crap non-verbose file name, when the folder name is flawless and *right there*!