I just made a post of my own suggesting basically the same thing (because I didn't bother to look through the rest of the posts first and see if someone had already said something about it, whoops!), so I guess I'll go ahead and delete my post and re-write it as a comment here that way there aren't a bunch of posts about the same thing, lol.
'I've been really wishing lately that you could create a re-watch/re-watching watch list on MyDramaList. I know I could just add the drama to my plan to watch or currently watching list, but then it's removed from my completed list, and I don't like that. Anyone else feel the same or is it just me?'
Hopefully, this post will get some traffic, cause I'd really like to see this implemented.