Yeah, very doubtful they'd have a third vote, and very unlikely unarmed would even win. In fact I think it was one of the least voted for trees. Perhaps some maddening bard songs would get snuck in by vengeful Nord :P.
I think monk/unarmed wasn't too popular because there's not a clear sense of what sort of unique gameplay monk/unarmed offers like a summoning tree, nor is there inherently a huge amount of instant flavor like with polymorph (which doesn't necesarilly point to a clear gameplay niche either). Monk classes take a lot of work and imagination to really flesh out and be unique, which rarely happens though is quite satisfying when it does. Monk works better in a tabletop setting where spirituality usually associated with monks can be expanded on and roleplayed by the players.
There's going to be tons of new skills, including lots of new mechanics, so sit tight, even if I can't guarantee many of them will be very monk or unarmed themed.