Can't help but feel like it happens every time. Brawl, like two weeks before release, people were expecting the game to still have a bunch of hidden characters... it had like, R.O.B and Lucario left. Smash 4, again, Dark Pit, Duck Hunt and Bowser Jr. This time it's Ken, Incineroar, and the game's token meme character.

When will Smashers learn? It's just so laughably unrealistic to fantasize about 7 newcomers to be announced the month before release, of which a bunch are super desirable characters (Banjo, Isaac, Geno).

Just get used to it. Sakurai reveals everything early until all he has to show you at the end is the options mode and the lyrics to the main theme.