What about a very specific and direct campaign direction? I'm thinking like, a short campaign for each character (in a 15-20 character game) with there being a representative from several popular genres. Let's just say we've got the OG 12. I like the idea of having very few characters and each...
I would prefer to have a campaign mode be the main focus of a single SSB game but I don't think most people would and I wouldn't want the series to lose fans either. It probably ought to continue to have a robust multiplayer element. Shoot, maybe go way over the top and remake levels from each...
Smash Ultimate. The name itself implies finality. Sakurai gonna Sakurai. Everybody's here (except a certain debonair dastard). Nintendo doesn't always make choices that I like but they don't usually milk series 'till they're dead the way many other developers do so we may have seen the last SSB...