Sakurai said he wasn't working on Kid Icarus again, I've been just taking that at face value and trying to pressure someone (ANYONE) at Nintendo to pick up the mantle.
Sakurai looks so tired, but making 1-2 DLC characters at a time has to be easier than heading up the entirety of game development. And if you look at the characters that are being added, some of them are from games that were clearly huge formative experiences for Sakurai. It's not a vacation by a long shot, but it's gotta be closer to a break than anything that he's worked on since like. . .Meteos, maybe? I'm gonna kick and scream until I get an Uprising port/sequel but even I can acknowledge that the development for that wasn't exactly sunshine and rainbows and outside of that it's been progressively more wild Smash games the entire time. Who knows, maybe someone can even convince Sakurai to take a nap right about now.
That said, if this thread is going to be half lamentations from Uprising fans, it's my obligation to pitch in. NINTENDO PLEASE MAKE AN UPRISING REMASTER/SEQUEL ON SWITCH I WILL GIVE YOU MY UNDYING AFFECTION