I could go on about how a well explained/understood interface actually saves just about everyone a lot of time and is probably specifically kept to just before release so it's most fresh in people's minds.
That could be an update to the 3DS section if it needs to be ("Modes" or something). For me personally, I can figure out all the menus just fine without having them explained over the course of three weeks. Maybe other people don't, but I generally explore all the menus anyway to find out where everything is.
We're getting shown the interface for an about to be released game. Sakurai did exactly the same thing for Brawl during the final stages. It wasn't suddenly some sort of hyper week/fortnight/etc of reveals.
Yes, but that was a different time.
Nintendo has changed their strategies since then. That was before Nintendo Directs, remember. While he could be doing the same thing as Brawl, it seems just as likely if not more that he'd be following the mold of Super Mario 3D World, Mario Kart 8 and Hyrule Warriors... which would mean one last info dump coming sometime before launch.
Personally, I'll be much more hyped by that than I would be by menu updates, music or no music. Call me spoiled if you want, but I don't think there's anything wrong with not finding menus to be hype-worthy.
While it would work better if the release was synchronized globally, the full roster is going to be revealed anyway when it comes out in Japan and almost anyone who follows the PotD consistently is also someone who is going to read about that. He can also always do the spoiler alerts like he did on the Brawl website for those who care. Better to build up the hype before launch instead of peaking back at E3 and in July with the Robin/Lucina reveal... Even just revealing one final newcomer would be
far better than doing menus and music the whole time.
But yeah, don't really think anything is much different due to leaks. It makes sense to keep surprises at this point and I don't think Sakurai has a work ethic to punish "everyone".
Yeah I don't really think it is either. Even if he changed his schedule due to the leaks, it would probably just mean switching one character for another (e.g. revealing a character that doesn't appear in the leak) and probably would only affect one day or so. These updates were likely coming anyway.