So if we have everything in order and I'm not mistaken, it looks like only two picks will be dissolved right now - Gibbers' last two picks.
You can still trade draft picks or prospects between now and the draft, and even during the draft, but there just has to be an equal # of minor league assets moving both ways.
Not a lot of administration work this year at the cutdown deadline, but in future years it will be a flurry. I expect each team to cut several prospects next year, and the cutdown deadline will also serve as a prospect promotion checkpoint.