EDIT: I LOVE YOU PLAYTONIC

Edit 2: Just fantastic, Toybox coming in July. It's a spoiler-free standalone world with custom props and the game's collectibles so we can try out how the various elements work.
Capital B is the head of Hivory Towers, and wants to use the pagies to turn the Grand Tomes and all the world's literature into pure profit, somehow.
QuackCorp had two main colleagues, the nefarious Dr. Quack and the multi-limbed Dr. Puzz. It was Dr. Quack (an exo-suit wearing fowl) who sold out to Hivory Towers to attain we assume wealth and power. Dr. Puzz will be doing all of the transformations in YL it seems.
Quills confirmed as a collectible that's traded to buy moves from Trowzer. The order moves are learned in is chosen by the player (careful for soft locks Playtonic ;D). And the Play Tonics are something separate for certain

An energy bar seems to be used to do the various moves and skills, cutting back on some of the collectibles that were found in say Banjo Tooie.