PIke and the Enterprise would only NEED to show up if we would see 100% of Star Fleet's ships in this, but I don't think that we necessarily would see 100% of the ships.
I'm thinking that it is quite possible that the Enterprise (and probably a few other ships) might have been in various locations on the other side of the galactic quadrant keeping the peace in those places.
I'm thinking that it is quite possible that the Enterprise (and probably a few other ships) might have been in various locations on the other side of the galactic quadrant keeping the peace in those places.