For the foreseeable future they do not plan on allowing access to the raw videos (e.g. usurp the embedded player).
Lots of plans for extensive statistics for YouTube video viewing (e.g. how much of a video was watched, who’s watching, etc.).
They are working on an upload API, which is currently focused on device manufacturers and not necessarily 100% open to all (what about GData?).
Search only allows searching meta data, but implicit data (e.g. voice recognition) isn’t searchable. It doesn’t sound like they’re working on it, but Google being Google you should expect this (didn’t they just launch face recognition for image search?).
Geo tagging and deep geo tagging is on their roadmap. They’re going to be adding steps to the upload process that should allow better information. Once there’s enough of that data they’ll be exposing it.
Doesn’t exactly sound like they’re working on editing, but that they’re interested in it.
Google Analytics? Haven’t done any work to allow such things, but the hope is that stats will be available from them and exposed publicly.