Assuming that no update types are repeated in the week, your choices for this Wednesday, Thursday, and Friday are character profile, special moves, stage, assist trophy, Poke Ball, how to play, and music.
I'm inclined to think that another how to play update is unlikely at this point. There's really not much to talk about that they haven't covered: recovery, double jumping (built into the recovery update), tether recovery, smash attacks, tilt attacks (built into the smash attacks), combos, special moves, footstool jumps, gliding, taunts, throws, entrances, moving and shooting, the basic rules of Smash, the Wii remote controls, final smashes, and shielding/dodging...
Maybe they'll do updates for each of the other control types, though. I hope not, but it's very possible. Oh, and of course crawling has to be on its way sooner or later. Oh, and wall jumping. Oh, and air dodging. ...I'm just digging myself into a hole, huh?