Is this because Balan is based of NIGHTS, and NIGHTS is based of Kirby Air Ride
I mean, it depends on what context
If you talking about delaying the release to September, there's not really a good reason to do that
The whole thing about waiting for an event to show off an reveal is to well...show off the reveal. If CP11 were to be revealed already, there's no reason to delay all the way to September, if we already know who the character is and such. They have had a history of saving reveals for big events or Directs, but the same can't be said for the Sakurai presents. those just come at anytime
The only reason to delay is if the Development needs the extra time, but otherwise there's no reason to do that
If you're talking about Saving the reveal for September, I could see the argument for that. though to be honest, if you're following the train of thought that Nintendo wants to ride the Smash hype for as long as possible, I don't really follow that train of thought
I could maybe see if they wanted to delay everything to December since that time of year is Holiday season, so having Smash in recent memory would sell more passes, but at the rate we are going, Nintendo is not gonna do that, Since Development on the characters should finish long before that period. Saving it for September would just be a unnecessary delay for no reason, especially since in all likihood, they gonna save the more controversial character of the pass in this scenario
And Nintendo doesn't need to ride on Smash hype anymore. They got Both BOTW2 and Splatoon 3 to show off, and that's just the tip of the iceberg. Ultimate is still hype, but it's still DLC for an Old game. If you Gangbangers like BOTW2 and Splatoon 3 in the mix, those 2 games can carry Nintendo until they come out.