Despite the outpouring of support from fans for a sequel to Kid Icarus: Uprising, the game's director Masahiro Sakurai has said that it would be difficult to bring Pit back.
The Kid Icarus series has remained missing for almost a decade, while other franchises have thrived on the Nintendo Switch. "We have received many requests for sequels and remakes, but it will be difficult," Sakurai said on Twitter (over a rough translation), "The new design of Pit is a spin-off of the one made with 'Smash Bros. X'"
Smash Bros. X refers to the Nintendo Wii entry Super Smash Bros. Brawl, which introduced Pit to the series and began his popularity with the majority of the modern Nintendo fanbase. Without Sakurai's true context, we can only speculate, but perhaps his focus can only be on the Super Smash Bros. series as that is the priority.
Super Smash Bros. Ultimate, much to the chagrin of fans of the genre, is the best-selling fighting game in history, beating out classics like Tekken 3 and Street Fighter 2. It has now sold over 22 million copies worldwide, and the Fighters Passes for DLC characters like Sephiroth and Minmin are taking precedent. There's also some speculation that there will be a Season Pass 3.
Kid Icarus Uprising was released all the way back in 2012 and was received well by reviewers with an 83 MetaCritic score. While it's a great game initially, it has one major drawback; its platform and the control method. It's a game ill-suited for the platform, and yet, it was received incredibly well in 2012, despite its major hangups.
Part of why fans love this game is the amusing and charming dialogue between Pit and Palutena. The voice lines uttered are nothing like other Nintendo games as Kid Icarus: Uprising consistently broke the fourth wall. It also is helped by some thrilling combat both in the air and on the ground. A Switch port like The Legend of Zelda: Skyward Sword or Miitopia would definitely give the game justice.