I say 9. People who wanted Smash or Animal Crossing, Virtual Console, Pokemon Switch...they're insane. That's so stupid from a business perspective. I think they showed what they needed to show. Mario Odyssey looks simply stunning and a new step forward in the 3D Platformer genre, Octopath looks great, Xenoblade Chronicles 2 looks amazing, 3ds still isn't dead, the Arcade Classics was unexpected but I called it a while ago when Namco Museum was released, it just makes too much sense. Kirby looks great, and this is just for the rest of 2017 to around mid 2018. This is more than enough to show to sell through their Switch stock for the rest of they year.
Nintendo just can't come out showing every popular franchise they have in one year. I mean come on. We already got Mario and Zelda in the same year along with a full JRPG. What else did you want!?